Source: https://patents.google.com/patent/US8266219B2/en
Timestamp: 2019-04-20 20:37:51
Document Index: 568870503

Matched Legal Cases: ['Application No. 2', 'Application No. 2', 'Application No. 05106674', 'Application No. 05106674', 'Application No. 05106674', 'Application No. 2']

US8266219B2 - Method and system for instant messaging conversation security - Google Patents
US8266219B2
US8266219B2 US11/184,845 US18484505A US8266219B2 US 8266219 B2 US8266219 B2 US 8266219B2 US 18484505 A US18484505 A US 18484505A US 8266219 B2 US8266219 B2 US 8266219B2
US11/184,845
US20070022163A1 (en
2005-07-20 Priority to US11/184,845 priority Critical patent/US8266219B2/en
2005-07-20 Assigned to RESEARCH IN MOTION LIMITED reassignment RESEARCH IN MOTION LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KLASSEN, GERHARD DIETRICH, WORMALD, CHRIS, ESTABLE, LUIS PABLO
2007-01-25 Publication of US20070022163A1 publication Critical patent/US20070022163A1/en
2012-09-11 Publication of US8266219B2 publication Critical patent/US8266219B2/en
A method for securing an instant messaging (“IM”) conversation between at least a first and a second user, the first and second users having a first and a second client, respectively, in communication over a network, the method comprising: receiving a command from the first user through an input device and a graphical user interface (“GUI”) presented on a display of the first client to disable copying of the IM conversation; and, transmitting a message to the second client to inform the second client and the second user that copying of the IM conversation has been disabled.
This application relates to the field of instant messaging (“IM”), and more specifically, to providing security for IM content exchanged between users of wireless and other devices.
Current wireless mobile communication devices include microprocessors, memory, soundcards, and run one or more software applications. Examples of software applications used in these wireless devices include micro-browsers, address books, electronic mail (“email”) clients, IM clients, and wavetable instruments. Additionally, wireless devices have access to a plurality of services via the Internet. A wireless device may, for example, be used to browse web sites on the Internet, to transmit and receive graphics, and to execute streaming audio and/or video applications. The transfer of Internet content to and from wireless device is typically facilitated by the Wireless Application Protocol (“WAP”), which integrates the Internet and other networks with wireless network platforms.
With IM, a user typically creates a list (e.g., a “buddy list”) of other users (e.g., “buddies”) with whom he or she wishes to communicate, then, when a user from his or her list is online, the service alerts the user and enables immediate contact with the other user. Using a graphical user interface (“GUI”) and input device (e.g., a mouse), the user clicks on a name presented in the buddy list presented on a display screen and types a message. The message then pops up in a window on the buddy's display screen. Other users in the buddy list can join in on the conversation much like a telephone conference call.
A second scheme of transmitting IMs uses a peer-to-peer architecture favoured by systems using ICQ protocol (pronounced “I seek you”), such as the Yahoo!® Messenger IM service. In the peer-to-peer approach, the central ICQ server keeps track of which users are currently online and records their Internet Protocol (“IP”)-based IM addresses. Once a user logs on to the ICQ server, the ICQ server scans the user's contact list and displays to the user the Internet IM protocol address of every person on the contact list currently logged onto the IM server. When the user wants to send an IM to a recipient on the ICQ server, the user simply selects the name of the recipient, types a message, and transmits the message. Because the ICQ client on the user's computer has the Internet Protocol IM address of the recipient, the message is sent directly to the ICQ client residing on the recipient's computer without involving the ICQ server. This method has an advantage over the centralized network system because the messages do no travel through the entire network, which speeds the transfers of large files, such as documents and images because they are not slowed by network traffic.
FIG. 9 is a flow chart illustrating operations of modules for securing an instant messaging (“IM”) conversation between at least a first and a second user, the first and second users having a first and a second client, respectively, in communication over a network, in accordance with an embodiment of the application.
The following detailed description of the embodiments of the present application does not limit their implementation to any particular computer programming language. The embodiments of the present application may be implemented in any computer programming language provided that the operating system (“OS”) provides the facilities that may support the requirements of these embodiments. A preferred embodiment is implemented in the JAVA™ computer programming language (or other computer programming languages such as C or C++). (JAVA and all JAVA-based trademarks are the trademarks of Sun Microsystems Corporation.) Any limitations presented would be a result of a particular type of operating system or computer programming language and would not be a limitation of the embodiments of the present application.
According to one embodiment, there is provided a method for securing an instant messaging (“IM”) conversation between at least a first and a second user, the first and second users having a first and a second client, respectively, in communication over a network, the method comprising: receiving a command from the first user through an input device and a graphical user interface (“GUI”) presented on a display of the first client to disable copying of the IM conversation; and, transmitting a message to the second client to inform the second client and the second user that copying of the IM conversation has been disabled.
Preferably, the copying includes at least one of cutting, pasting, editing, viewing, reading, forwarding, and programmatically accessing. Preferably, the method further includes receiving a command from the first user to delete at least a portion of the IM conversation after a period of time. Preferably, the method further includes: disabling copying of the IM conversation; receiving a command from the first user to transmit a message to the second client to request the second user for permission to enable copying of the IM conversation; receiving a message at the first client from the second client granting permission to enable copying of the IM conversation; and, enabling copying of the IM conversation. Preferably, the second client and the second user are an IM server and an IM server user, respectively. Preferably, a first portion of the IM conversation is attributable to the first user and the method further includes receiving a command from the first user to disable copying of the first portion of the IM conversation while the first client is offline. Preferably, at least one of the first and second clients is a wireless device having a keyboard for selecting items in the GUI to generate commands, wherein the keyboard is one of a QWERTY keyboard, a modified QWERTY keyboard, a Dvorak keyboard, and an predictive text keyboard.
The data processing system 101 may be a server system or a personal computer (“PC”) system. The CPU 121 of the system 101 is operatively coupled to memory 131 which stores an operating system (not shown), such as IBM Corporation's OS/2™, UNIX, etc., for general management of the system 101. As mentioned, the interface 151 may be used for communicating to external data processing systems (not shown) through a network (such as the Internet) or wireless network 100 (see FIG. 2). Examples of suitable platforms for the system 101 include iSeries™ servers and ThinkCentre™ m personal computers available from IBM Corporation. The system 101 may include application server software (not shown), such as WebLogic® Server available from BEA Systems, Inc., for developing and managing distributed applications.
The data processing system 101 may include a database system 161 for storing and accessing programming information. The database system 161 may include a database management system (“DBMS”) and a database and is stored in the memory 131 of the data processing system 101.
A user may interact with the data processing system 101 and its software modules 171 using a graphical user interface (“GUI”) 185. The GUI 185 may be web-based or may be a stand-alone application and may be used for monitoring, managing, and accessing the data processing system 101. GUIs are supported by common operating systems and provide a display format which enables a user to choose commands, execute application programs, manage computer files, and perform other functions by selecting pictorial representations known as icons, or items from a menu through use of an input or pointing device such as a mouse 112. In general, a GUI is used to convey information to and receive commands from users and generally includes a variety of GUI objects or controls, including icons, toolbars, drop-down menus, text, dialog boxes, buttons, and the like. A user typically interacts with a GUI 185 presented on a display 141 by using an input or pointing device (e.g., a mouse) 112 to position a pointer or cursor 195 over an object 196 and by “clicking” on the object 196.
Typically, a GUI based system presents application, system status, and other information to the user in “windows” appearing on the display 141. A window 197 is a more or less rectangular area within the display 141 in which a user may view an application or a document. Such a window 197 may be open, closed, displayed full screen, reduced to an icon, increased or reduced in size, or moved to different areas of the display 141. Multiple windows may be displayed simultaneously, such as: windows included within other windows, windows overlapping other windows, or windows tiled within the display area.
The wireless device 102 will normally incorporate a communication subsystem 111, which includes a RF receiver, a RF transmitter, and associated components, such as one or more (preferably embedded or internal) antenna elements, local oscillators (“LOs”), and a processing module such as a digital signal processor (“DSP”) (all not shown). As will be apparent to those skilled in field of communications, particular design of the communication subsystem 111 depends on the communication network 100 in which the device 102 is intended to operate.
Network access is associated with a subscriber or user of the device 102 and therefore the device 102 may require a Subscriber Identity Module (or “SIM” card) 162 to be inserted in a SIM interface (“IF”) 164 in order to operate in the network. The device 102 is a battery-powered device so it also includes a battery IF 154 for receiving one or more rechargeable batteries 156. Such a battery 156 provides electrical power to most if not all electrical circuitry in the device 102, and the battery IF 154 provides for a mechanical and electrical connection for it. The battery IF 154 is coupled to a regulator (not shown) which provides power to the circuitry of the device 102.
The wireless device 102 includes a microprocessor (or central processing system (“CPU”)) 138 which controls overall operation of the device 102. Communication functions, including at least data and voice communications, are performed through the communication subsystem 111. The microprocessor 138 also interacts with additional device subsystems such as a display 122, a flash memory 124 or other persistent store, a random access memory (“RAM”) 126, auxiliary input/output (“I/O”) subsystems 128, a serial port 130, a keyboard 132, a speaker 134, a microphone 136, a short-range communications subsystem 140, and any other device subsystems generally designated at 142. Some of the subsystems shown in FIG. 2 perform communication-related functions, whereas other subsystems may provide “resident” or on-device functions. Notably, some subsystems, such as the keyboard 132 and display 122, for example, may be used for both communication-related functions, such as entering a text message for transmission over a communication network 100, and device-resident functions such as a calculator or task list. Operating system software used by the microprocessor 138 is preferably stored in a persistent store such as the flash memory 124, which may alternatively be a read-only memory (“ROM”) or similar storage element (not shown). Those skilled in the art will appreciate that the operating system, specific device applications, or parts thereof, may be temporarily loaded into a volatile store such as RAM 126.
According to another embodiment, the keyboard 132 may be a combination of a telephone style keypad and QWERTY style keyboard. For example, the keyboard 132 may have a 5×5 array of keys or buttons on which, unlike a traditional telephone layout that has letters overlaid on numbers in alphabetical order for text entry, the overlay for the keyboard may be in QWERTY order. Advantageously, the keyboard 132 allows users to quickly and accurately dial or type either using single-handed operation or two-handed thumb-typing without the limitations associated with traditional telephone keypads. For example, the user need not learn a new way to type.
In addition, the keyboard 132 may be a predictive text or disambiguating keyboard having associated with it a predictive text or disambiguating software module 206 (see FIG. 3) that allows QWERTY style typing, using a built-in dictionary and set of rules, to select the correct letter based on context. To help facilitate easy spelling and composition, the predictive text or disambiguating software module 206 includes intuitive software with a word list (e.g., over 30,000 words) and the ability to increase that list based on the frequency of use and the names in the handheld's address book. It may also have the ability to recognize character letter sequences that are common in the English language, such as “-ing”. Advantageously, as the software 206 “understands” what a user is typing, the user can concentrate on composing his or her message rather than on the input method.
The serial port 130 shown in FIG. 2 is normally implemented in a personal digital assistant (“PDA”)-type communication device for which synchronization with a user's desktop computer is a desirable, albeit optional, component. The serial port 130 enables a user to set preferences through an external device or software application and extends the capabilities of the device 102 by providing for information or software downloads to the device 102 other than through a wireless communication network 100. The alternate download path may, for example, be used to load an encryption key onto the device 102 through a direct and thus reliable and trusted connection to thereby provide secure device communications.
FIG. 3 is a block diagram illustrating a memory 200 of the wireless device 102 of FIG. 2. The memory 200 has various software components for controlling the device 102 and may include flash memory 124, RAM 126, or ROM (not shown), for example. In accordance with one embodiment, the wireless device 102 is intended to be a multi-tasking wireless communications device configured for sending and receiving data items and for making and receiving voice calls. To provide a user-friendly environment to control the operation of the device 102, an operating system (“O/S”) 202 resident on the device 102 provides a basic set of operations for supporting various applications typically operable through a graphical user interface (“GUI”) 204. For example, the O/S 202 provides basic input/output system features to obtain input from the auxiliary I/O 128, keyboard 132, and the like, and for facilitating output to the user. In accordance with one embodiment, there are provided software modules 206 for IM conversation security as will be described below. Though not shown, one or more applications for managing communications or for providing personal digital assistant like functions may also be included.
FIG. 4 is a front view illustrating the wireless device 102 of FIG. 2. As mentioned above, the wireless device 102 can be a data and voice-enabled handheld device. The wireless device 102 includes a casing 150, a display screen 122 for displaying a graphical user interface (“GUI”) 180, a keyboard (or keypad) 132, a clickable thumbwheel (or trackwheel) 110, various select buttons 120, and various signal inputs/outputs 160 (e.g., power connector input, microphone, speaker, data interface input, etc.). Internally, the wireless device 102 includes one or more circuit boards, a CPU 138, memory 200, a battery 156, an antenna, etc. (not shown) which are coupled to the signal inputs/outputs 160, keyboard 132, display screen 122, etc.
A user may interact with the wireless device 102 and its software modules 206 using the graphical user interface (“GUI”) 180. As mentioned, GUIs are supported by common operating systems and provide a display format which enables a user to choose commands, execute application programs, manage computer files, and perform other functions by selecting pictorial representations known as icons, or items from a menu through use of an input or pointing device such as a thumbwheel 110 and keyboard 132. In general, a GUI is used to convey information to and receive commands from users and generally includes a variety of GUI objects or controls, including icons, toolbars, drop-down menus, pop-up menus, text, dialog boxes, buttons, and the like. A user typically interacts with a GUI 180 presented on a display 122 by using an input or pointing device (e.g., a thumbwheel 110, a keyboard 132, etc.) to position a pointer or cursor 190 over an object 191 (i.e., “pointing” at the object) and by “clicking” on the object 191. (e.g., by depressing the thumbwheel 110, by depressing a button on the keyboard 132, etc.). This is often referred to as a point-and-click operation or a selection operation. Typically, the object 191 may be hi-lighted (e.g., shaded) when it is pointed at.
FIGS. 5 through 8 are screen captures illustrating an exemplary IM service GUI 180, 185 for presentation on the display 122, 141 of a wireless device 102 or data processing system 101. In particular, FIG. 5 is a screen capture illustrating an application menu GUI 500 for a wireless device 102 or data processing system 101 in accordance with an embodiment of the application. A user initiates the IM service by clicking on an icon 510 representing the IM service in the GUI 500. FIG. 6 is a screen capture illustrating an IM service log-on GUI 600 for a wireless device 102 or data processing system 101 in accordance with an embodiment of the application. Upon initiating the IM service, and as described above, a user enters a username and password into respective fields 610, 620 in the GUI 600 to access the IM service. FIG. 7 is a screen capture illustrating a main IM service GUI 700 for a wireless device 102 or data processing system 101 in accordance with an embodiment of the application. Upon logging-on to the IM service, the main IM service GUI 700 is presented to the user. The main GUI 700 provides a listing 710 of the contacts, buddies, or users 731, 732 that are online and a listing 720 of the contacts, buddies, or users 733, 734, 735, 736 that are offline. The users are represented in the GUI 700 by a unique text string (e.g., a username) 731-736 and/or by a user icon 741-746. The GUI 700 provides an indication 750 of the number of users that are online with respect to the total number of users in the group of contacts (e.g., “2/6”). In addition, the GUI 700 provides an indication (e.g., a bubble icon) 760 that an online user (e.g., “gehr96” 732) has sent an IM message. By selecting the indication 760 or corresponding user text string 732 or user icon 742, a user may view the IM message and compose a response to it, if desired. FIG. 8 is a screen capture illustrating an IM message GUI 800 for a wireless device 102 or data processing system 101 in accordance with an embodiment of the application. The GUI 800 provides an identifier 810 of the sender of the IM message (e.g., “gehr96”) and the content (e.g., text) 820 of the IM message (e.g., “test”). In addition, the GUI 800 provides a field 830 in which a user may compose a response (e.g., “This is a reply . . . ” 840) to the IM message. The content 820, 840 of the IM message and response represents an IM conversation between the first and second 731, 732 users.
According to another embodiment, the IM conversation between the first and second users 731, 732 (or more users) can be secured by either of the users before the IM conversation begins, or at any time during the IM conversation, by selecting an option through their GUI 185, 180 that functions to set an expiry period for the IM conversation so that the content of the IM conversation is automatically deleted, or “self-destructs”, after the designated expiry period. This option may be selected through an object 196, 191 presented on each users' display screen 141, 122.
According to another embodiment, a portion 820 of the IM conversation between the first and second users 731, 732 (or more users) that corresponds to one user, say the first user 732, can be secured by locking (i.e., preventing copying, cutting, and/or pasting) that portion 820 of the content of the IM conversation when the first user 732 is offline (i.e., not present). Locking in this embodiment is thus a default setting for the IM conversation. For example, if first user “gehr96” 732 is offline, then second user “gehr98” 731 cannot read gehr96's responses unless gehr96 is online (i.e., present) or unless gehr96 has given gehr98 permission to read gehr96's responses when gehr96 is offline. In order for a second user 731 to copy, cut, and/or paste a portion 820 of the content of the IM conversation attributable to a first user 732, the second 731 user must receive explicit permission from the first user 732 to unlock the first user's portion 820 of the IM conversation to allow for copying, cutting, and/or pasting of that portion 820 when the first user 732 is offline. This permission may be requested by a user before the IM conversation begins, or at any time during the IM conversation, by selecting an option through their GUI 185, 180 that functions to send a request to the client 101, 102 of the other user for permission to unlock the IM conversation. This option may be selected through an object 196, 191 presented on the user's display screen 141, 122. Similarly, permission may be granted by a user upon receipt of the request to unlock the IM conversation by selecting an option through their GUI 185, 180 that functions to send a permission message to the client 101, 102 of the other user for granting permission to unlock the IM conversation. This option may be selected through an object 196, 191 presented on the user's display screen 141, 122.
Note that in addition to copying, cutting, and/or pasting, the above embodiments are also applicable to any user interface features that have the same or similar effects as copying, cutting, and/or pasting, such as, for example “one-click” forwarding of a conversation by email. Furthermore, the above embodiments are also applicable to any programmed features that have the same or similar effects as copying, cutting, and/or pasting, such as, for example, application program interface (“API”) function calls or macro commands that can programmatically gain access to an IM conversation.
The above described method may be summarized with the aid of a flowchart. FIG. 9 is a flow chart illustrating operations 900 of modules 171, 206 for securing an instant messaging (“IM”) conversation between at least a first and a second user, the first and second users having a first (e.g., 102) and a second client (e.g., 101), respectively, in communication over a network 100, in accordance with an embodiment of the application.
At step 902, a command is received from the first user through an input device (e.g., a clickable thumbwheel) 110 and a graphical user interface (“GUI”) 180 presented on a display 122 of the first client 102 to disable copying of the IM conversation.
1. A method for securing an instant messaging (“IM”) conversation between at least first and second communication devices communicating over a network, the method comprising:
receiving a conversation-specific command at the first communication device to disable copying of data representing at least a portion of a specific IM conversation after at least the portion of the specific IM conversation has been communicated between the first and second communication devices; and
transmitting a conversation-specific message to the second communication device to inform a user of the second communication device that copying of the data representing at least the portion of the specific IM conversation has been disabled.
3. The method of claim 1 further comprising receiving a command at the first device to delete the data representing at least the portion of the specific IM conversation after a period of time.
disabling copying of the data representing at least the portion of the specific IM conversation;
receiving a command at the first communication device to transmit a message to the second communication device to request permission to enable copying of data representing at least a same or another portion of the specific IM conversation;
receiving a message from the second communication device granting permission to enable copying of the data representing at least the same or the other portion of the specific IM conversation; and,
enabling copying of the data representing at least the same or the other portion of the specific IM conversation.
5. The method of claim 4 wherein the second communication device comprises an IM server.
6. The method of claim 1, wherein a first portion of the specific IM conversation is attributable to the first communication device, and the method comprises receiving a command at the first communication device to disable copying of data representing the first portion of the specific IM conversation while the first communication device is disconnected from the network, wherein transmitting the message to the second communication device occurs when the first communication device is connected to the network.
7. The method of claim 1 wherein at least one of the first and second communication devices is a wireless device having a keyboard for selecting items in a GUI to generate commands, wherein the keyboard is one of a QWERTY keyboard, a modified QWERTY keyboard, a Dvorak keyboard, and an predictive text keyboard.
8. A system for securing an instant messaging (“IM”) conversation between the system and a client, the system and client being in communication over a network, the system comprising:
receiving a conversation-specific command through an input device and a graphical user interface (“GUI”) presented on a display of the system to disable copying of data representing at least a portion of a specific IM conversation after at least the portion of the specific IM conversation has been communicated between the client and a second communication device; and,
transmitting a message to the client to inform the client that copying of the data representing at least the portion of the specific IM conversation has been disabled.
10. The system of claim 9 wherein the processor is further adapted for receiving a command to delete the data representing at least the portion of the specific IM conversation after a period of time.
11. The system of claim 9 wherein the processor is further adapted for:
receiving a command to transmit a message to the client to request permission to enable copying of data representing at least a same or another portion of the specific IM conversation;
receiving a message at the system from the client granting permission to enable copying of the data representing at least the same or the other portion of the specific IM conversation; and,
12. The system of claim 11 wherein the client comprises an IM server.
13. The system of claim 9 wherein a first portion of the IM conversation is attributable to a first user and the processor is further adapted for receiving a command from the first user to disable copying of data representing the first portion of the IM conversation while the system is disconnected from the network, and transmitting the message to the second communication device when the first communication device is connected to the network.
15. A computer program product having a non-transitory computer readable medium tangibly embodying computer executable code for directing a data processing system to secure an instant messaging (“IM”) conversation between at least data processing system and a client, the data processing system and client being in communication over a network, the computer program product comprising:
code for receiving a conversation-specific command through an input device and a graphical user interface (“GUI”) presented on a display of the data processing system to disable copying of data representing at least a portion of a specific IM conversation after at least the portion of the specific IM conversation has been communicated between the first and second communication devices; and
code for transmitting a message to the client to inform the second user that copying of the data representing at least the portion of the specific IM conversation has been disabled.
17. The computer program product of claim 16 and further comprising code for receiving a command to delete the data representing at least the portion of the specific IM conversation after a period of time.
18. The computer program product of claim 16 and further comprising:
code for disabling copying of the data representing at least the portion of the specific IM conversation;
code for receiving a command to transmit a message to the client to request permission to enable copying of data representing at least a same or another portion of the specific IM conversation;
code for receiving a message at the data processing system from the client granting permission to enable copying of the data representing at least the same or the other portion of the specific IM conversation; and,
code for enabling copying of the data representing at least the same or the other portion of the specific IM conversation.
20. The computer program product of claim 16 wherein a first portion of the IM conversation is attributable to a first user and further comprising code for receiving a command from the first user to disable copying of data representing the first portion of the IM conversation while the data processing system is disconnected from the network, and transmitting the message to the second communication device when the first communication device is connected to the network.
detecting that a third communication device has joined the IM conversation; and
in the absence of a further command to disable copying of the data representing at least the portion of the specific IM conversation, automatically transmitting the conversation-specific message to the third communication device to inform a user of the third communication device that copying of the data representing at least the portion of the specific IM conversation has been disabled.
22. The system of claim 8 wherein the processor is further adapted for:
23. The computer program product of claim 15 further comprising:
code for detecting that a third communication device has joined the IM conversation; and
code for, in the absence of a further command to disable copying of the data representing at least the portion of the specific IM conversation, automatically transmitting the conversation-specific message to the third communication device to inform a user of the third communication device that copying of the data representing at least the portion of the specific IM conversation has been disabled.
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US11/184,845 US8266219B2 (en) 2005-07-20 2005-07-20 Method and system for instant messaging conversation security
US13/571,427 US20120304080A1 (en) 2005-07-20 2012-08-10 Method and system for instant messaging conversation security
US13/571,427 Continuation US20120304080A1 (en) 2005-07-20 2012-08-10 Method and system for instant messaging conversation security
US20070022163A1 US20070022163A1 (en) 2007-01-25
US8266219B2 true US8266219B2 (en) 2012-09-11
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US11/184,845 Active 2028-10-19 US8266219B2 (en) 2005-07-20 2005-07-20 Method and system for instant messaging conversation security
US13/571,427 Pending US20120304080A1 (en) 2005-07-20 2012-08-10 Method and system for instant messaging conversation security
US (2) US8266219B2 (en)
2005-07-20 US US11/184,845 patent/US8266219B2/en active Active
2012-08-10 US US13/571,427 patent/US20120304080A1/en active Pending
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European Patent Office, Decision to Grant a European Patent pursuant to Article 97(2) EPC, dated Jun. 28, 2007, issued in respect of European Patent Application No. 05106674.4.
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Ipulse, Response to Extended European Search Report dated Jan. 18, 2006, filed in respect of European Patent Application No. 05106674.4.
Ogilvy Renault, Response to Examiner's Requisition dated May 28, 2010, filed in respect of Canadian Patent Application No. 2,552,256.
US20120304080A1 (en) 2012-11-29
US20070022163A1 (en) 2007-01-25
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WORMALD, CHRIS;KLASSEN, GERHARD DIETRICH;ESTABLE, LUIS PABLO;REEL/FRAME:016802/0129;SIGNING DATES FROM 20050706 TO 20050718
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WORMALD, CHRIS;KLASSEN, GERHARD DIETRICH;ESTABLE, LUIS PABLO;SIGNING DATES FROM 20050706 TO 20050718;REEL/FRAME:016802/0129