----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor                                                                                                                                                                             |
|--------------------------------|---------|------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 5689641                        | US      | 10/01/1993       | Multimedia      collaboration system arrangement for routing compressed AV signal through      a participant site without decompressing the AV signal Ludwig, Lester      F.                                              |
| 5867654                        | US      | 6/7/1996         | Two      monitor videoconferencing hardware Ludwig, Lester F.                                                                                                                                                             |
| 5978835                        | US      | 6/7/1996         | Multimedia      mail, conference recording and documents in video conferencing Ludwig,      Lester F.                                                                                                                     |
| 5896500                        | US      | 6/7/1996         | System      for call request which results in first and second call handle defining      call state consisting of active or hold for its respective AV device      Ludwig, Lester F.                                      |
| 5884039                        | US      | 6/7/1996         | System      for providing a directory of AV devices and capabilities and call      processing such that each participant participates to the extent of      capabilities available Ludwig, Lester F.                      |
| 5617539                        | US      | 6/7/1996         | Multimedia      collaboration system with separate data network and A/V network controlled      by information transmitting on the data network Ludwig, Lester      F.                                                    |
| 5802294                        | US      | 6/7/1996         | Teleconferencing      system in which first location video mosaic generator sends combined local      participants images to second location video mosaic generator for      displaying combined images Ludwig, Lester F. |
| 5758079                        | US      | 6/7/1996         | Call      control in video conferencing allowing acceptance and identification of      participants in a new incoming call during an active teleconference      Ludwig, Lester F.                                         |
| 5854893                        | US      | 6/10/1996        | System      for teleconferencing in which collaboration types and participants by      names or icons are selected by a participant of the teleconference Ludwig,      Lester F.                                          |
| 5915091                        | US      | 6/11/1996        | Synchronization      in video conferencing Ludwig, Lester F.                                                                                                                                                              |
| 6351762                        | US      | 6/7/1996         | Method      and system for log-in­based video and multimedia calls Ludwig, Lester      F.                                                                                                                            |
| 6583806                        | US      | 4/7/1997         | Videoconferencing      hardware Ludwig, Lester F.                                                                                                                                                                         |
| 6343314                        | US      | 4/28/1997        | Remote      participant hold and disconnect during videoconferencing Ludwig, Lester      F.                                                                                                                               |
| 6237025                        | US      | 12/19/199      7 | Multimedia      collaboration system Ludwig, LesterF.                                                                                                                                                                     |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| 6212547   | US | 5/5/1998         | UTP      based video and data conferencing Ludwig, Lester F.                                                                       |
|-----------|----|------------------|------------------------------------------------------------------------------------------------------------------------------------|
| 6898620   | US | 5/5/1998         | Multiplexing      video and control signals onto UTP Ludwig, Lester F.                                                             |
| 6437818   | US | 5/5/1998         | Video      conferencing on existing UTP infrastructure Ludwig, Lester    F.                                                        |
| 6426769   | US | 5/5/1998         | High-quality      switched analog video communications over unshielded twisted pair Ludwig,      Lester F.                         |
| 09/565677 | US | 5/4/2000         | Scalable      Networked Multimedia System And Applications Ludwig, Lester    F.                                                    |
| 7185054   | US | 11/1/2000        | Participant      display and selection in video conference calls Ludwig, Lester      F.                                            |
| 6594688   | US | 06/11/2001       | Dedicated      echo canceler for a workstation Ludwig, Lester F.                                                                   |
| 7054904   | US | 4/9/2002         | Marking      and searching capabilities in multimedia documents within multimedia      collaboration networks Ludwig, Lester F.    |
| 6789105   | US | 4/9/2002         | Multiple-editor      authoring of multimedia documents including real-time video and      time-insensitive media Ludwig, Lester F. |
| 6959322   | US | 3/4/2003         | UTP      based video conferencing Ludwig, Lester F.                                                                                |
| 10/382554 | US | 3/4/2003         | Teleconferencing      employing multiplexing of video and data conferencing signals J. Chris      Lauwers                          |
| 7206809   | US | 11/26/200      3 | Method      for real-time communication between plural users Ludwig, Lester      F.                                                |
| 7152093   | US | 11/26/2003       | System      for real-time communication between plural users Ludwig, Lester      F.                                                |
| 7421470   | US | 11/26/200      3 | Method      for real-time communication between plural users Ludwig, Lester      F.                                                |
| 7433921   | US | 11/26/200      3 | System      for real-time communication between plural users Ludwig, Lester      F.                                                |
| 11/264926 | US | 11/1/2005        | Audio      communications using devices with different capabilities Lester F.      Ludwig                                          |
| 11/264936 | US | 11/1/2005        | Log-in      based communications plus two data types Lester F.  Ludwig                                                             |
| 11/265059 | US | 11/1/2005        | Using      login-based addressing to communicate with listed users Lester F.      Ludwig                                           |
| 11/265256 | US | 11/1/2005        | Registration      based addressing over multiple networks with digital audio communication      Lester F. Ludwig                   |
| 11/265394 | US | 11/1/2005        | Registration      based addressing and call handles to establish communication Lester F.      Ludwig                               |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| 7487210   | US | 1/12/2007  | Method      for managing real-time communications Ludwig, Lester F.                                                                                                                                  |
|-----------|----|------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 7412482   | US | 1/12/2007  | System      for managing real-time communications Ludwig, Lester F.                                                                                                                                  |
| 7437411   | US | 1/15/2007  | Communication      of a selected type over a wide area network Ludwig, Lester    F.                                                                                                                  |
| 7398296   | US | 1/16/2007  | Networked      audio communication over two networks Ludwig, Lester F.                                                                                                                               |
| 7444373   | US | 1/16/2007  | Wireless      real-time communication Ludwig, Lester F.                                                                                                                                              |
| 7441001   | US | 1/18/2007  | Real-time      wide-area communications between ports Ludwig, LesterF.                                                                                                                               |
| 7437412   | US | 1/19/2007  | Real-time      communication of a selected type Ludwig, Lester F.                                                                                                                                    |
| 11/668625 | US | 1/30/2007  | Storing      and accessing media files J. Chris Lauwers                                                                                                                                              |
| 11/669003 | US | 1/30/2007  | Storage      and playback of media files J. Chris Lauwers                                                                                                                                            |
| 11/737723 | US | 4/19/2007  | Storing      and accessing media files Lester F. Ludwig                                                                                                                                              |
| 90/009008 | US | 02/25/2008 | UTP      based video and data conferencing Ludwig, Lester F.                                                                                                                                         |
| 90/009015 | US | 02/29/2008 | Video      conferencing on existing UTP infrastructure Ludwig, Lester    F.                                                                                                                          |
| 90/009016 | US | 02/29/2008 | System      for providing a directory of AV devices and capabilities and call      processing such that each participant participates to the extent of      capabilities available Ludwig, Lester F. |
| 90/009020 | US | 05/20/2008 | Multimedia      collaboration system with separate data network and a/v network controlled      by information transmitting on the data network Ludwig, Lester      F.                               |
| 90/009021 | US | 02/29/2008 | System      for real-time communication between plural users Ludwig, Lester      F.                                                                                                                  |
| 90/009031 | US | 03/05/2008 | Remote      participant hold and disconnect during videoconferencing Ludwig, Lester      F.                                                                                                          |
| CA2173204 | CA | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                                                                               |
| CA2173209 | CA | 10/03/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                                                                               |
| CA2204442 | CA | 03/16/1994 | Multimedia      collaboration system with separate data network and a/v network controlled      by information transmitting on the data network Ludwig, Lester      F.                               |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| CA2296181    | CA | 10/03/1994 | System      for providing a directory of av devices and capabilities and call      processing such that each participant participates to the extent of      capabilities available Ludwig, Lester F. |
|--------------|----|------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| CA2296182    | CA | 10/03/1994 | Call      control in video conferencing allowing acceptance and identification of      participants in a new incoming call during an active teleconference      Ludwig, Lester F.                    |
| CA2296185    | CA | 10/03/1994 | System      for call request which results in first and second call handle defining      call state consisting of active or hold for its respective av device      Ludwig, Lester F.                 |
| CA2296187    | CA | 10/03/1994 | Synchronization      in video conferencing Ludwig, Lester F.                                                                                                                                         |
| CA2296189    | CA | 10/03/1994 | System      for teleconferencing in which collaboration types and participants by      names or icons are selected by a participant of the teleconference Ludwig,      Lester F.                     |
| CA2297940    | CA | 03/16/1994 | Two      monitor videoconferencing hardware Ludwig, Lester F.                                                                                                                                        |
| CH690154     | CH | 09/28/1994 | Synchronization      in video conferencing Ludwig, Lester F.                                                                                                                                         |
| DE69426456.3 | DE | 10/03/1994 | Videoconference      signal switching without decompression Ludwig, LesterF.                                                                                                                         |
| DE69428725.3 | DE | 03/16/1994 | Multimedia      teleconferencing system Ludwig, Lester F.                                                                                                                                            |
| DE69429684.8 | DE | 10/03/1994 | Synchronization      in a multimedia system Ludwig, Lester F.                                                                                                                                        |
| DE69430272.4 | DE | 10/03/1994 | Participant      location in multimedia collaboration system Ludwig, Lester    F.                                                                                                                    |
| DE69431525.7 | DE | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                                                                               |
| DE69431536.2 | DE | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                                                                               |
| DE69432803.0 | DE | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                           |
| DE69433042.6 | DE | 10/03/1994 | Multimedia      mail in teleconferencing system Ludwig, Lester F.                                                                                                                                    |
| DE69434762.0 | DE | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                           |
| DE69435132.6 | DE | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                           |
| FR1307038    | FR | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                           |
| FR1705913    | FR | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                           |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| FR0721725 | FR | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                     |
|-----------|----|------------|--------------------------------------------------------------------------------------------|
| FR0721726 | FR | 10/03/1994 | Videoconference      signal switching without decompression Ludwig, LesterF.               |
| FR0899952 | FR | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F. |
| FR0899953 | FR | 10/03/1994 | Participant      location in multimedia collaboration system Ludwig, Lester    F.          |
| FR0899954 | FR | 10/03/1994 | Multimedia      mail in teleconferencing system Ludwig, Lester F.                          |
| FR0898424 | FR | 03/16/1994 | Multimedia      teleconferencing system Ludwig, Lester F.                                  |
| FR0912055 | FR | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                     |
| FR0912056 | FR | 10/03/1994 | Synchronization      in a multimedia system Ludwig, Lester F.                              |
| GB1307038 | GB | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F. |
| GB1705913 | GB | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F. |
| GB2282506 | GB | 05/27/1994 | Teleconferencing      system Ludwig, Lester F.                                             |
| GB0721725 | GB | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                     |
| GB0721726 | GB | 10/03/1994 | Videoconference      signal switching without decompression Ludwig, LesterF.               |
| GB2319135 | GB | 05/27/1994 | Teleconferencing      system Ludwig, Lester F.                                             |
| GB2319136 | GB | 05/27/1994 | Teleconferencing      system Ludwig, Lester F.                                             |
| GB2319137 | GB | 05/27/1994 | Teleconferencing      system Ludwig, Lester F.                                             |
| GB2319138 | GB | 05/27/1994 | Teleconferencing      system Ludwig, Lester F.                                             |
| GB0899952 | GB | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F. |
| GB0899953 | GB | 10/03/1994 | Participant      location in multimedia collaboration system Ludwig, Lester    F.          |
| GB0899954 | GB | 10/03/1994 | Multimedia      mail in teleconferencing system Ludwig, Lester F.                          |
| GB0898424 | GB | 03/16/1994 | Multimedia      teleconferencing system Ludwig, Lester F.                                  |
| GB0912055 | GB | 03/16/1994 | Multimedia      collaboration system Ludwig, LesterF.                                      |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| GB0912056    | GB         | 10/03/1994 | Synchronization      in a multimedia system Ludwig, Lester F.                                                                              |
|--------------|------------|------------|--------------------------------------------------------------------------------------------------------------------------------------------|
| NL1705913    | NL         | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                 |
| SE1705913    | SE         | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                 |
| 5751338      | US         | 12/30/1994 | Methods      and systems for multimedia communications via public telephone networks      Ludwig, Jr., Lester Frank                        |
| 6081291      | US         | 04/16/1997 | Methods      and systems for multimedia communication via public telephone networks      Ludwig, Jr., Lester Frank                         |
| 6972786      | US         | 12/23/1999 | Multimedia      services using central office Ludwig, Lester F.                                                                            |
| 11/786802    | US         | 4/11/2007  | Multimedia      services using central office Ludwig, Lester F.                                                                            |
| 11/927459    | US         | 10/29/2007 | Interconnecting      network locations between premises network and central office using      ethernet on loop plant Ludwig, Lester F.     |
| 90/009079    | US         | 03/14/2008 | Multimedia      services using central office Ludwig, Lester F.                                                                            |
| CA2208987    | CA         | 10/04/1995 | Multimedia      communications via public telephone networks Ludwig, Jr., Lester      Frank                                                |
| GB2296620    | GB         | 10/11/1995 | Methods      and systems for multimedia communication via public telephone networks      Ludwig, Jr., Lester Frank                         |
| GB0801858    | GB         | 10/04/1995 | Multimedia      central office and method of providing a plurality of multimedia      telecommunication services Ludwig, Jr., Lester Frank |
| GB2308526    | GB         | 10/11/1995 | Methods      and systems for multimedia communication via public telephone networks      Ludwig, Jr., Lester Frank                         |
| SG53410      | SG         | 10/04/1995 | Multimedia      communications via public telephone networks Ludwig, Jr., Lester      Frank                                                |
| 6816904      | US         | 5/4/2000   | Networked      video multimedia storage server environment Ludwig,  Lester                                                                 |
| 10/931651    | US         | 8/31/2004  | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |
| CA2308147    | CA         | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |
| DE69837887.3 | DE         | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |
| DE69840427   | DE         | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |
| FR1814290    | ES      FR | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| FR1029273               | FR | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                                                           |
|-------------------------|----|------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| GB1814290               | GB | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                                                           |
| GB1029273               | GB | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                                                           |
| IE1814290               | IE | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                                                           |
| 11/246867               | US | 10/7/2005  | Multiple-channel      codec and transcoder environment for gateway, mcu, broadcast and video      storage applications J. Chris Lauwers                                              |
| 11/814671               | US | 1/12/2006  | Multiple-channel      codec and transcoder environment for gateway, mcu, broadcast and video      storage applications J. Chris Lauwers                                              |
| EP06718435.8            | EP | 01/12/2006 | Multiple-channel      codec and transcoder environment for gateway, mcu, broadcast and video      storage applications J. Chris Lauwers                                              |
| KR10-2007­-7019362 | KR | 01/12/2006 | Multiple-channel      codec and transcoder environment for gateway, mcu, broadcast and video      storage applications J. Chris Lauwers                                              |
| SG200705449-7           | SG | 01/12/2006 | Multiple-channel      codec and transcoder environment for gateway, mcu, broadcast and video      storage applications J. Chris Lauwers                                              |
| EP942737.8              | EP | 6/9/2000   | System      And Method For Broswer-Based Multimedia Collaboration Reporting Burnett,      Gerald, et al.                                                                             |
| 10/018,441              | US | 6/9/2000   | System      And Method For Broswer-Based Multimedia Collaboration Reporting Burnett,      Gerald, et al.                                                                             |
| 11/625330               | US | 1/21/2007  | Storing      and accessing media files J. Chris Lauwers                                                                                                                              |
| 90/009009               | US | 02/26/2008 | Method      for real-time communication between plural users Ludwig, Lester      F.                                                                                                  |
| 90/009010               | US | 02/25/2008 | Method      and system for log-in­based video and multimedia calls Ludwig, Lester      F.                                                                                       |
| 90/009012               | US | 02/22/2008 | Participant      display and selection in video conference calls Ludwig, Lester      F.                                                                                              |
| 90/009013               | US | 02/25/2008 | Multimedia      collaboration system Ludwig, Lester F.                                                                                                                               |
| 90/009018               | US | 03/03/2008 | Synchronization      in video conferencing Ludwig, Lester F.                                                                                                                         |
| 90/009019               | US | 02/28/2008 | System      for call request which results in first and second call handle defining      call state consisting of active or hold for its respective av device      Ludwig, Lester F. |
| 90/009023               | US | 02/27/2008 | Multiple-editor      authoring of multimedia documents including real-time video and      time-insensitive media Ludwig, LesterF.                                                    |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| 90/009024 | US | 02/27/2008 | Multimedia      mail, conference recording and documents in video conferencing Ludwig,      Lester F.                                                                                                               |
|-----------|----|------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 90/009025 | US | 03/03/2008 | Call      control in video conferencing allowing acceptance and identification of      participants in a new incoming call during an active teleconference      Ludwig, Lester F.                                   |
| 90/009030 | US | 03/04/2008 | UTP      based video conferencing Ludwig, Lester F.                                                                                                                                                                 |
| 90/009032 | US | 03/05/2008 | Two      monitor videoconferencing hardware Ludwig, Lester F.                                                                                                                                                       |
| 90/009035 | US | 03/06/2008 | High-quality      switched analog video communications over unshielded twisted pair Ludwig,      Lester F.                                                                                                          |
| 90/009038 | US | 03/07/2008 | Multiplexing      video and control signals onto UTP Ludwig, Lester F.                                                                                                                                              |
| 90/009040 | US | 03/05/2008 | Teleconferencing      system in which location video mosaic generator sends combined local      participants images to second location video mosaic generator for      displaying combined images Ludwig, Lester F. |
| 90/009042 | US | 03/07/2008 | Dedicated      echo canceler for a workstation Ludwig, Lester F.                                                                                                                                                    |
| 90/009044 | US | 03/14/2008 | Multimedia      collaboration system arrangement for routing compressed av signal through      a participant site without decompressing the av signal Ludwig, Lester      F.                                        |
| 90/009077 | US | 09/13/2008 | Videoconferencing      hardware Ludwig, Lester F.                                                                                                                                                                   |
| 90/009081 | US | 03/14/2008 | Marking      and searching capabilities in multimedia documents within multimedia      collaboration networks Ludwig, Lester F.                                                                                     |
| CA2290701 | CA | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                                                                                              |
| EP1307038 | EP | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                                          |
| EP1705913 | EP | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                                          |
| EP0721725 | EP | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                                                                                              |
| EP0721726 | EP | 10/03/1994 | Videoconference      signal switching without decompression Ludwig, LesterF.                                                                                                                                        |
| EP0899952 | EP | 10/03/1994 | Call      detection and handling in multimedia collaboration system Ludwig, Lester      F.                                                                                                                          |
| EP0899953 | EP | 10/03/1994 | Participant      location in multimedia collaboration system Ludwig, Lester    F.                                                                                                                                   |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| EP0899954             | EP | 10/03/1994 | Multimedia      mail in teleconferencing system Ludwig, Lester F.                                                                          |
|-----------------------|----|------------|--------------------------------------------------------------------------------------------------------------------------------------------|
| EP0898424             | EP | 03/16/1994 | Multimedia      teleconferencing system Ludwig, Lester F.                                                                                  |
| EP0912055             | EP | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                     |
| EP0912056             | EP | 10/03/1994 | Synchronization      in a multimedia system Ludwig, Lester F.                                                                              |
| EP99202661.7          | EP | 03/16/1994 | Teleconferencing      system Ludwig, Lester F.                                                                                             |
| PCT/US94/00      2961 | WO | 03/16/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                     |
| PCT/US94/01      1193 | WO | 10/03/1994 | Multimedia      collaboration system Ludwig, Lester F.                                                                                     |
| 08/860575             | US | 10/04/1995 | Methods      and systems for multimedia communications via public telephone networks      Ludwig, Jr., Lester Frank                        |
| 90/009080             | US | 03/14/2008 | Methods      and systems for multimedia communication via public telephone networks      Ludwig, Jr., Lester Frank                         |
| EP0801858             | EP | 10/04/1995 | Multimedia      central office and method of providing a plurality of multimedia      telecommunication services Ludwig, Jr., Lester Frank |
| PCT/US95/01      3016 | WO | 10/04/1995 | Multimedia      communications via public telephone networks Ludwig, Jr., Lester      Frank                                                |
| 60/064266             | US | 11/04/1997 | Video      storage server Ludwig, Lester                                                                                                   |
| EP1814290             | EP | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |
| EP1029273             | EP | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |
| PCT/US98/02      3596 | WO | 11/04/1998 | Scalable      networked multimedia system and applications Ludwig,  Lester                                                                 |
| 60/647168             | US | 1/25/2005  | Multiple-channel      codec and transcoder environment for gateway, MCU, broadcast and video      storage applications Lester Ludwig       |
| PCT/US06/00      1358 | WO | 01/12/2006 | Multiple-channel      codec and transcoder environment for gateway, MCU, broadcast and video      storage applications J. Chris Lauwers    |
| EP03023333.2          | EP | 10/04/1995 | Multimedia      communications via public telephone networks Ludwig, Jr., Lester      Frank                                                |
| 08/869236             | US | 06/04/1997 |                                                                                                                                       |
| 08/900807             | US | 07/25/1997 |                                                                                                                                       |

----

| Patent      or Application No. | Country | Filing      Date | Title      of Patent and First Named Inventor |
|--------------------------------|---------|------------------|-----------------------------------------------|

| 08/982849            | US | 12/02/1997 |                                                                                                                                                                             |
|----------------------|----|------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 2,377,014            | CA | 12/07/01   | System      and method for browser-based multimedia collaboration reporting Burnett,      Gerald, et al.                                                                         |
| PCT/US00/15      990 | WO | 06/09/00   | System      and method for browser-based multimedia collaboration reporting Burnett,      Gerald, et al.                                                                         |
| 60/138,921           | US | 06/11/99   | System      and method for browser-based multimedia collaboration reporting Burnett,      Gerald                                                                                 |
| 11/932,802           | US | 10/31/2007 | System      and method for browser-based multimedia collaboration reporting Burnett,      Gerald, et al.                                                                         |
| 90/009082            | US | 03/14/2008 | Methods      and systems for multimedia communication via public telephone networks      Ludwig, Jr., Lester Frank                                                               |
| 90/009014            | US | 02/26/2008 | System      for teleconferencing in which collaboration types and participants by      names or icons are selected by a participant of the teleconference Ludwig,      Lester F. |
| 90/009022            | US | 02/29/2008 | Networked      video multimedia storage server environment Ludwig,  Lester                                                                                                       |
| 5689641              | US | 10/01/1993 | Multimedia      collaboration system arrangement for routing compressed AV signal through      a participant site without decompressing the AV signal Ludwig, Lester      F.     |
| 5867654              | US | 6/7/1996   | Two      monitor videoconferencing hardware Ludwig, Lester  F.                                                                                                                   |

----