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IN THE UNITED STATES DISTRICT COURT 

FOR THE WESTERN DISTRICT OF TEXAS

WACO DIVISION

WSOU INVESTMENTS, LLC d/b/a 

BRAZOS LICENSING AND 

DEVELOPMENT,

Plaintiff,

v.

Huawei Investment & Holding Co., Ltd.,

Huawei Technologies Co., Ltd.,

Huawei Technologies USA Inc.,

Huawei Device Co. Ltd. (f/k/a Huawei 

Device (Dongguan) Co.),

Huawei Device (Shenzhen) Co., Ltd. (f/k/a 

Huawei Device Co., Ltd.),

Huawei Device USA, Inc.

Defendants.

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CIVIL ACTION NO. 6:20-cv-192

JURY TRIAL DEMANDED

ORIGINAL COMPLAINT FOR PATENT 

INFRINGEMENT

Plaintiff WSOU Investments, LLC d/b/a Brazos Licensing and Development

(“Brazos” or “Plaintiff”), by and through its attorneys, files this Complaint for Patent 

Infringement against Defendants Huawei Investment & Holding Co., Ltd., Huawei 

Technologies Co., Ltd., Huawei Technologies USA Inc., Huawei Device Co. Ltd. (f/k/a 

Huawei Device (Dongguan) Co.), Huawei Device (Shenzhen) Co., Ltd. (f/k/a Huawei Device 

Co., Ltd.), and Huawei Device USA, Inc. (collectively “Huawei” or “Defendants”) and 

alleges:

NATURE OF THE ACTION

1. This is a civil action for patent infringement arising under the Patent Laws 

of the United States, 35 U.S.C. §§ 1, et seq., including §§ 271, 281, 284, and 285.

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 1 of 29
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THE PARTIES

2. Brazos is a limited liability corporation organized and existing under the laws 

of Delaware, with its principal place of business at 605 Austin Ave, Ste 6, Waco, TX 76701.

3. On information and belief, Defendant Huawei Investment & Holding Co., 

Ltd. is a Chinese corporation that does business in Texas, directly or through intermediaries,

with a principal place of business at Bantian, Longgang District, Shenzhen, 518129, 

People’s Republic of China.

4. On information and belief, Defendant Huawei Technologies Co., Ltd. is a 

Chinese corporation that does business in Texas, directly or through intermediaries, with a 

principal place of business at Bantian, Longgang District, Shenzhen 518129, People’s 

Republic of China.

5. Upon information and belief, Defendant Huawei Technologies USA Inc. is a 

corporation organized and existing under the laws of Texas that maintains an established 

place of business at 2391 NE Interstate 410 Loop, San Antonio, TX 78217. Huawei 

Technologies USA, Inc. is authorized to do business in Texas and may be served via its 

registered agent, CT Corporation System, 1999 Bryan Street, Suite 900, Dallas, Texas 

75201-3136.

6. Upon information and belief, Defendant Huawei Device Co. Ltd. (formerly 

known as Huawei Device (Dongguan) Co.) is a Chinese corporation that does business in 

Texas, directly or through intermediaries, and maintains a principal place of business in No.2 

of Xincheng Road, Songshan Lake Zone, Dongguan, Guangdong 523808, People’s 

Republic of China.

7. Upon information and belief, Huawei Device (Shenzhen) Co., Ltd. (formerly 

known as Huawei Device Co., Ltd.) is a wholly-owned subsidiary of Defendant Huawei 

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Device Co. Ltd. is a Chinese corporation that does business in Texas, directly or through 

intermediaries, and maintains a principal place of business in Bantian, Longgang District, 

Shenzhen 518129, People’s Republic of China.

8. On information and belief, Defendant Huawei Device USA, Inc., is a Texas

corporation with a principal place of business located at 5700 Tennyson Parkway, Suite 600,

Plano, Texas 75024. Huawei Device USA, Inc. is authorized to do business in Texas and 

may be served via its registered agent, CT Corporation System, 1999 Bryan Street, Suite 

900, Dallas, Texas 75201-3136.

9. All of the Defendants operate under and identify with the trade name 

“Huawei.” Each of the Defendants may be referred to individually as a “Huawei Defendant” 

and, collectively, Defendants may be referred to below as “Huawei” or as the “Huawei 

Defendants.” Upon information and belief, Defendant Huawei Investment & Holding Co., 

Ltd. provides consolidated financial reporting for Huawei entities, including all Huawei 

Defendants.

JURISDICTION AND VENUE

10. This is an action for patent infringement which arises under the Patent Laws 

of the United States, in particular, 35 U.S.C. §§271, 281, 284, and 285.

11. This Court has jurisdiction over the subject matter of this action under 28 

U.S.C. §§ 1331 and 1338(a).

12. This Court has specific and general personal jurisdiction over each Huawei

Defendant pursuant to due process and/or the Texas Long Arm Statute, because each Huawei 

Defendant has committed acts giving rise to this action within Texas and within this judicial 

district. The Court’s exercise of jurisdiction over each Huawei Defendant would not offend 

traditional notions of fair play and substantial justice because Huawei has established 

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minimum contacts with the forum. For example, on information and belief, Huawei

Defendants have committed acts of infringement in this judicial district, by among other 

things, selling and offering for sale products that infringe the asserted patent, directly or 

through intermediaries, as alleged herein.

13. Venue in the Western District of Texas is proper pursuant to 28 U.S.C. 

§§1391(b), (c)(3), and 1400(b) because Huawei Technologies USA Inc. and Huawei Device 

USA Inc. have committed acts of infringement in this judicial district and have a regular 

and established places of business in this judicial district and in Texas. As non-limiting 

examples, on information and belief, Huawei Technologies USA Inc. and Huawei Device 

USA Inc. have sold or offered to sell the Accused Products in this judicial district and have 

employees or agents that operate Huawei equipment in this judicial district, including at

189 CR 265, Georgetown, TX 78626, 1150 S Bell Blvd, Cedar Park, TX 78613, 1399 S A 

W Grimes Blvd, Round Rock, TX 78664, 12335 IH 35, Jarrell, TX 76537, 1050 Rabbit Hill 

Rd, Unit #E, Georgetown, TX 78626, 1602 A W Grimes Blvd, Round Rock, TX 78664, 

4120 IH 35 N, Georgetown, TX 78626, 900 CR 272, Leander, TX 78641, 1950 Crystal 

Falls Pkwy, Leander, TX 78641, 1101 N Industrial Blvd, Round Rock, TX 78681, 506 

McNeil Rd, Round Rock, TX 78681, 3210 Chisholm Trail Rd, Round Rock, TX 78681, 

112 Roundville Ln, Round Rock, TX 78664, 202 Central Dr W, Georgetown, TX 78628, 

3595 E Hwy 29, Georgetown, TX 78626, 1402 W Welch St, Taylor, TX 76574, 3801 Oak 

Ridge Dr, Round Rock, TX 78681, 1957 Red Bud Ln #B, Round Rock, TX 78664, 6603 S 

Lakewood Dr, Georgetown, TX 78633, 500 W Front, Hutto, TX 78634.

COUNT ONE - INFRINGEMENT OF 

U.S. PATENT NO. 7,515,546

14. Brazos re-alleges and incorporates by reference the preceding paragraphs 

of this Complaint.

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15. On April 7, 2009, the United States Patent and Trademark Office duly and 

legally issued U.S. Patent No. 7,515,546(“the ’546 Patent”), entitled “Method and apparatus 

for automatic discovery of network devices with data forwarding capabilities.” A true and 

correct copy of the ’546 Patent is attached as Exhibit A to this Complaint.

16. Brazos is the owner of all rights, title, and interest in and to the ’546 Patent, 

including the right to assert all causes of action arising under the ’546 Patent and the right 

to any remedies for the infringement of the ’546 Patent.

17. Huawei makes, uses, sells, offers for sale, imports, and/or distributes in the 

United States, including within this judicial district, products such as, but not limited to,

management systems for enterprises that integrate convergent O&M management solution 

oriented to enterprise data centers, campus/branch networks, unified communications, 

videoconferencing, and video surveillance (collectively, the “Accused Products”). 

18. The Accused Products include Huawei eSight.

19. Huawei eSight provides management of network devices (or, resources). Before 

eSight manages a network, the network devices connect and establish network connections 

with the eSight. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/a2b0eb1d/adding-networkdevices

20. eSight allows planning and creation of subnets before adding devices. A user 

can then add devices based on the subnets. 

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https://support.huawei.com/enterprise/en/doc/EDOC1100107090/96810d25/principle

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/709813a6/adding-resources.

21. eSight provides three Subnet types for adding different types of resources such 

as network devices, IT storage devices. etc.

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https://support.huawei.com/enterprise/en/doc/EDOC1100097758/709813a6/adding-resources

22. After adding subnets, resources are discovered and added to the eSight. eSight 

uses Simple Network Management Protocol (SNMP) for discovering and adding resources 

(e.g. network devices). Using the SNMP protocol, eSight delivers commands containing 

SNMP parameters to devices. If the devices detect that the received SNMP parameters are the 

same as those on them, devices are successfully added to eSight. 

https://support.huawei.com/enterprise/us/doc/EDOC1100097758/7dbd4dbd/operationprocedure

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 7 of 29
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https://support.huawei.com/enterprise/en/doc/EDOC1100107090/e5a1ada8/basic-managementof-network-devices

23. eSight provides Automatic Discovery method to add resources. Using the 

Automatic discovery method, the devices within a specific IP segment are added to eSight for 

management. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/709813a6/adding-resources

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 8 of 29
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https://support.huawei.com/enterprise/en/doc/EDOC1100107090/e5a1ada8/basic-managementof-network-devices

24. An administrator selects Automatic Discovery from Add Resource option on the 

left tree in eSight. The admin needs to enter Start IP address and End IP address in basic 

settings to provide a range of IP addresses for automatic discovery of devices in a network 

segment. The eSight discovers resources (e.g. network devices) between the defined IP 

addresses starting from Start IP address (or the first network address).

https://support.huawei.com/enterprise/en/doc/EDOC1100044378/a5d479fa/adding-networkdevices.

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https://support.huawei.com/enterprise/en/doc/EDOC1100097758/7dbd4dbd/operationprocedure.

25. Huawei describes its SNMP management model as containing four components: 

Network management system (NMS), agent, management object, and Management 

Information Base (MIB).

Fig. 1

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https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles

26. The management devices contain an agent process, MIB, and multiple 

management objects. The NMS interacts with the agent on a device, which performs an 

operation on the MIB after receiving commands from the NMS. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles

27. The NMS manager runs on NMS servers in a network to monitor and control 

network devices using SNMP. The agent is a process running on a managed device. The agent 

maintains data on the managed device, responds to request packets from the NMS, and returns 

management data to the NMS. MIB is a database containing the variables that are maintained 

by the managed device and can be queried or set by the agent. A management object is an 

object to be managed on a network device. 

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https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles

28. eSight provides three versions of SNMP to use on the NMS for communication 

with the device. The SNMP versions on different application scenario e.g. network size, 

security, etc.

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https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles

29. The NMS manages devices through SNMP. The NMS sends queries to devices 

to obtain information in the response. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles

30. An SNMP packet includes IP address as header and other fields such as version, 

community name, and SNMP PDU. The SNMP PDU includes PDUs such as GetRequest 

PDU, GetNExtRequest PDU, etc. 

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https://support.huawei.com/enterprise/en/doc/EDOC1000178174/73e6152/snmpv1-snmpv2c

31. SNMPv1/SNMPv2c defines seven types of operations for exchanging 

information between the NMS and the agent. SNMPv3 provides a similar mechanism for 

request and response.

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles.

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 14 of 29
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https://support.huawei.com/enterprise/en/doc/EDOC1000178174/703951c4/snmpv3.

32. The NMS sends GetRequest (or Get) request to the device associated with the 

address (or, first address) to obtain values of specific variables from the SNMP agent in the 

device. In this manner, the eSight sends a GetRequest (or, first message) using NMS to a 

network device’s network address to request information. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles.

https://support.huawei.com/enterprise/en/doc/EDOC1000178174/73e6152/snmpv1-snmpv2c.

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33. The admin configures SNMP parameters settings (e.g. SNMP Protocol 

template) during Automatic Discovery of resources. SNMP protocol settings provides a 

“timeout period” and number of “retries”. The NMS waits for the response as per the defined 

SNMP protocol settings (e.g. timeout period). 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/7dbd4dbd/operationprocedure.

34. The eSight NMS sends a GetRequest/Get (or, first message) to obtain 

information (e.g. syscontact object value) from agent on a network device. The NMS waits

for the appropriate response from the SNMP agent in the device. The agent on a managed 

device sends a response packet only after authenticating the SNMP request. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles.

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https://support.huawei.com/enterprise/en/doc/EDOC1000178174/73e6152/snmpv1-snmpv2c

35. The admin configures SNMP parameters settings (e.g. SNMP Protocol 

template) during Automatic Discovery of resources. SNMP protocol settings provides a 

“timeout period” and number of “retries”. The NMS waits for the response as per the defined 

SNMP protocol settings (e.g. timeout period). 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/7dbd4dbd/operationprocedure

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 17 of 29
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36. The eSight NMS sends a GetRequest/Get (or, first message) to obtain 

information (e.g. syscontact object value) from agent on a network device. The NMS waits

for the appropriate response from the SNMP agent in the device. The agent on a managed 

device sends a response packet only after authenticating the SNMP request. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principles.

https://support.huawei.com/enterprise/en/doc/EDOC1000178174/73e6152/snmpv1-snmpv2c

37. The NMS receives response from the network device agent based on the 

GetRequest query. The agent queries the information required in response from the MIB. The 

MIB on a device defines the attributes of the managed device, including the name, status, 

access rights, and data type of management objects. An agent can use the MIB to learn 

information about a network device. 

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https://support.huawei.com/enterprise/en/doc/EDOC1000178174/73e6152/snmpv1-snmpv2c, 

https://support.huawei.com/enterprise/en/doc/EDOC1000178174/9e3730e8/snmpmanagement-model

38. The eSight NMS discovers resources (e.g. network devices) within different 

subnets during the automatic discovery. Automatic Discovery method provides an option to 

“Automatically add discovered devices. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/e4b41c07/typicalconfiguration-example

39. eSight provides user-defined auto-discovery methods such as simple mode and 

advanced mode. This allows administrator to discover specific device types. In simple mode, 

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 19 of 29
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only certain types of devices (such as routing devices) are discovered and added. These 

devices include network devices such as routers, switches, etc. 

https://support.huawei.com/enterprise/en/doc/EDOC1000020356?section=j00b

40. The administrator can select basic mode (or, simple mode) to add devices such 

as routers, switches, etc. with routing capabilities. 

https://support.huawei.com/enterprise/en/doc/EDOC1100044378/a5d479fa/adding-networkdevices

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 20 of 29
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41. Therefore, the discovered network devices based on user defined auto-discovery 

mode are added to eSight automatically after the completion of discovery process. The added 

devices are shown in Resources tab. For example, the Network Devices added can be accessed 

using Resources > Network Devices. The Network Devices menu shows the details (e.g. IP 

address, name, model) of devices. Such details (e.g. model number) provides information 

about the routing capabilities of the devices. 

https://support.huawei.com/enterprise/en/doc/EDOC1100011877/f09f8a66/operationprocedure

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/7dbd4dbd/operationprocedure

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https://support.huawei.com/enterprise/en/doc/EDOC1100011877/f09f8a66/operationprocedure

https://support.huawei.com/enterprise/en/doc/EDOC1000020356?section=j006

42. eSight detects network devices with routing capabilities (e.g. routers, switches, 

etc.) through simple automatic discovery mode. 

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https://support.huawei.com/enterprise/en/doc/EDOC1000020356?section=j00b

https://support.huawei.com/enterprise/en/doc/EDOC1100044378/a5d479fa/adding-networkdevices

43. The discovered network devices (e.g. devices with routing capabilities such as 

routers, switches, etc.) are added to eSight network management system. The administrator 

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 23 of 29
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can view devices information of the added devices and perform required operations for 

management. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/7dbd4dbd/operationprocedure

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/7dbd4dbd/operationprocedure

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 24 of 29
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Fihttps://support.huawei.com/enterprise/en/doc/EDOC1000020356?section=j006

44. The eSight network management system selects the provided addresses one by 

one and then sends requests to each address for discovering devices. Once the first address is 

analyzed and matched with the discovery criteria placed by the user through SNMP protocol, 

the network management system selects the second address in the specified range.

45. The second address is selected from the IP range (Start IP address and End IP 

address) specified in the discovery profile. The execution of the discovery starts with the first 

address in the specified range and is followed by subsequent addresses. 

https://support.huawei.com/enterprise/en/doc/EDOC1100097758/7dbd4dbd/operationprocedure

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 25 of 29
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46. Once the second address is selected, the request is placed to obtain desired 

information from the SNMP agent at the network device. The response from the agent is 

analyzed and the discovered devices are added to eSight. The NMS uses GetRequest queries 

for each address and receives response from agents. This process gets repeated for all the 

addresses present in the range specified by the user. 

https://support.huawei.com/enterprise/en/doc/EDOC1000178174/73e6152/snmpv1-snmpv2c

https://support.huawei.com/enterprise/en/doc/EDOC1100011877/f09f8a66/operationprocedure

Case 6:20-cv-00192-ADA Document 1 Filed 03/16/20 Page 26 of 29
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47. In view of preceding paragraphs, each and every element of at least claim 1 

of the ’546 Patent is found in the Accused Products.

48. Huawei has and continues to directly infringe at least one claim of the ’546

Patent, literally or under the doctrine of equivalents, by making, using, selling, offering for 

sale, importing, and/or distributing the Accused Products in the United States, including 

within this judicial district, without the authority of Brazos.

49. Huawei has received notice and actual or constructive knowledge of the ’546

Patent since at least the date of service of this Complaint.

50. Since at least the date of service of this Complaint, through its actions, 

Huawei has actively induced product makers, distributors, retailers, and/or end users of the 

Accused Products to infringe the ’546 Patent throughout the United States, including within 

this judicial district, by, among other things, advertising and promoting the use of the Accused 

Products in various websites, including providing and disseminating product descriptions, 

operating manuals, and other instructions on how to implement and configure the Accused 

Products. Examples of such advertising, promoting, and/or instructing include the documents 

at:

• https://support.huawei.com/enterprise/us/doc/EDOC1100107090/16cdb2/logicalarchitecture

• https://support.huawei.com/enterprise/en/doc/EDOC1100107090/4380cd56/networkmanagement

• https://support.huawei.com/enterprise/en/doc/EDOC1100107090/e5a1ada8/basicmanagement-of-network-devices

• https://support.huawei.com/enterprise/en/doc/EDOC1100107090/e6ebf9aa/benefits

• https://support.huawei.com/enterprise/en/doc/EDOC1100097758/a2b0eb1d/addingnetwork-devices

• https://support.huawei.com/enterprise/en/doc/EDOC1100097758/4cbe8a31/overview

• https://support.huawei.com/enterprise/en/doc/EDOC1100097758/28c4e2a3/function

• https://support.huawei.com/enterprise/en/doc/EDOC1100107090/96810d25/principle

• https://support.huawei.com/enterprise/en/doc/EDOC1100097758/709813a6/addingresources

• https://support.huawei.com/enterprise/us/doc/EDOC1100097758/7dbd4dbd/operatio

n-procedure

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• https://support.huawei.com/enterprise/en/doc/EDOC1100097758/93b32c91/principle

s

• https://support.huawei.com/enterprise/en/doc/EDOC1000178174/73e6152/snmpv1-

snmpv2c

• https://support.huawei.com/enterprise/en/doc/EDOC1000178174/703951c4/snmpv3

• https://support.huawei.com/enterprise/en/doc/EDOC1000178174/9e3730e8/snmpmanagement-model

• https://support.huawei.com/enterprise/en/doc/EDOC1100097758/e4b41c07/typicalconfiguration-example

• https://support.huawei.com/enterprise/en/doc/EDOC1100011877/f09f8a66/operation

-procedure

• https://e.huawei.com/us/solutions/business-needs/enterprise-network/campusnetwork/agile-campus/wired-and-wireless-convergence

• https://support.huawei.com/enterprise/en/doc/EDOC1100107090/c170f368/overview

• https://support.huawei.com/enterprise/en/doc/EDOC1000020356?section=j006

• https://support.huawei.com/enterprise/en/doc/EDOC1100044378/a5d479fa/addingnetwork-devices

51. Since at least the date of service of this Complaint, through its actions, Huawei

has contributed to the infringement of the ’546 Patent by having others sell, offer for sale, or 

use the Accused Products throughout the United States, including within this judicial district, 

with knowledge that the Accused Products infringe the ’546 Patent. The Accused Products are 

especially made or adapted for infringing the ’546 Patent and have no substantial noninfringing use. For example, in view of the preceding paragraphs, the Accused Products 

contain functionality which is material to at least one claim of the ’546 Patent.

JURY DEMAND

Brazos hereby demands a jury on all issues so triable.

REQUEST FOR RELIEF

WHEREFORE, Brazos respectfully requests that the Court:

(A) Enter judgment that Huawei infringes one or more claims of the ’546 Patent 

literally and/or under the doctrine of equivalents;

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(B) Enter judgment that Huawei has induced infringement and continues to 

induce infringement of one or more claims of the ’546 Patent;

(C) Enter judgment that Huawei has contributed to and continues to contribute 

to the infringement of one or more claims of the ’546 Patent;

(D) Award Brazos damages, to be paid by Huawei in an amount adequate to 

compensate Brazos for such damages, together with pre-judgment and post-judgment 

interest for the infringement by Huawei of the ’546 Patent through the date such judgment 

is entered in accordance with 35 U.S.C. §284, and increase such award by up to three times 

the amount found or assessed in accordance with 35 U.S.C. §284;

(E) Declare this case exceptional pursuant to 35 U.S.C. §285; and

(F) Award Brazos its costs, disbursements, attorneys’ fees, and such further and 

additional relief as is deemed appropriate by this Court.

Dated: March 16, 2020 Respectfully submitted,

/s/ James L. Etheridge

James L. Etheridge

Texas State Bar No. 24059147 

Ryan S. Loveless

Texas State Bar No. 24036997 

Travis L. Richins

Texas State Bar No. 24061296

ETHERIDGE LAW GROUP, PLLC

2600 E. Southlake Blvd., Suite 120 / 324

Southlake, Texas 76092

Telephone: (817) 470-7249

Facsimile: (817) 887-5950

Jim@EtheridgeLaw.com

Ryan@EtheridgeLaw.com

Travis@EtheridgeLaw.com

COUNSEL FOR PLAINTIFF

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