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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. 

DELL TECHNOLOGIES INC., 

DELL INC., EMC CORPORATION, 

AND VMWARE, INC.,

Defendants.

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CIVIL ACTION 6:20-cv-00473-ADA

CIVIL ACTION 6:20-cv-00474-ADA

CIVIL ACTION 6:20-cv-00475-ADA

CIVIL ACTION 6:20-cv-00476-ADA

CIVIL ACTION 6:20-cv-00477-ADA

CIVIL ACTION 6:20-cv-00478-ADA

CIVIL ACTION 6:20-cv-00479-ADA

CIVIL ACTION 6:20-cv-00480-ADA

CIVIL ACTION 6:20-cv-00481-ADA

CIVIL ACTION 6:20-cv-00482-ADA

CIVIL ACTION 6:20-cv-00485-ADA

CIVIL ACTION 6:20-cv-00486-ADA

PLAINTIFF’S DISCLOSURE OF EXTRINSIC EVIDENCE

Plaintiff WSOU Investments, LLC d/b/a Brazos License and Development (“WSOU”)

submits the following disclosure of extrinsice evidence pursuant to the Order Governing 

Proceedings (“OGP”) and the Scheduling Order entered in this case.

Plaintiff reserves the right to update, supplement, revise, or otherwise modify this 

disclosure in light of further investigation and discovery, including evidence not yet produced by 

Defendants.

Group 1

6:20-cv-00480-ADA, U.S. Patent No. 7,539,133

 WSOU does not disclose any extrinsic evidence at this time.

6:20-cv-00481-ADA, U.S. Patent No. 9,164,800

 WSOU does not disclose any extrinsic evidence at this time.

6:20-cv-00485-ADA, U.S. Patent No. 7,636,309

 WSOU does not disclose any extrinsic evidence at this time.

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 1 of 10
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6:20-cv-00486-ADA, U.S. Patent No. 7,092,360

 WSOU does not disclose any extrinsic evidence at this time. 

Group 2

6:20-cv-00473-ADA, U.S. Patent No. 9,137,144

 WSOU does not disclose any extrinsic evidence at this time.

6:20-cv-00478-ADA, U.S. Patent No. 7,126,921

 WSOU does not disclose any extrinsic evidence at this time.

Group 3

6:20-cv-00477-ADA, U.S. Patent No. 8,913,489

 WSOU does not disclose any extrinsic evidence at this time.

6:20-cv-00482-ADA, U.S. Patent No. 7,424,020

 WSOU does not disclose any extrinsic evidence at this time.

Group 4

6:20-cv-00474-ADA, U.S. Patent No. 7,212,536

 WSOU does not disclose any extrinsic evidence at this time.

6:20-cv-00475-ADA, U.S. Patent No. 7,453,888

 WSOU does not disclose any extrinsic evidence at this time.

6:20-cv-00476-ADA, U.S. Patent No. 7,565,435

 IEEE std. 802.IQ-2003

 IEEE std. 802.1s-2002

 ANSI/IEEE Std. 802.1D, 1998 

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 2 of 10
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 IEEE Std. 802.1w-2001 

 ISO/IEC 7498-1:1994

6:20-cv-00479-ADA, U.S. Patent No. 8,402,129

 WSOU does not disclose any extrinsic evidence at this time.

Dated: January 27, 2021 Respectfully submitted,

By: /s/ Ryan S. Loveless

James L. Etheridge 

Texas Bar No. 24059147 

Ryan S. Loveless 

Texas Bar No. 24036997 

Brett A. Mangrum 

Texas Bar No. 24065671 

Travis L. Richins 

Texas Bar No. 24061296 

Jeff Huang 

Etheridge Law Group, PLLC 

2600 E. Southlake Blvd., Suite 120 / 324 

Southlake, TX 76092 

Tel.: (817) 470-7249 

Fax: (817) 887-5950 

Jim@EtheridgeLaw.com 

Ryan@EtheridgeLaw.com 

Brett@EtheridgeLaw.com 

Travis@EtheridgeLaw.com 

Jeff@EtheridgeLaw.com 

Mark D. Siegmund

State Bar No. 24117055

mark@waltfairpllc.com

Law Firm of Walt, Fair PLLC.

1508 North Valley Mills Drive 

Waco, Texas 76710

Telephone: (254) 772-6400

Facsimile: (254) 772-6432

Counsel for Plaintiff WSOU Investments, LLC

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 3 of 10
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CERTIFICATE OF SERVICE

A true and correct copy of the foregoing instrument was served or delivered electronically 

to all counsel of record via email on January 27, 2021.

/s/ Ryan S. Loveless

Ryan S. Loveless

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 4 of 10
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.

DELL TECHNOLOGIES INC., DELL INC., 

AND EMC CORPORATION,

Defendants.

Case No. 6:20-cv-00473-ADA

Case No. 6:20-cv-00474-ADA

Case No. 6:20-cv-00475-ADA

Case No. 6:20-cv-00476-ADA

Case No. 6:20-cv-00477-ADA

Case No. 6:20-cv-00478-ADA

Case No. 6:20-cv-00479-ADA

Case No. 6:20-cv-00482-ADA

JURY TRIAL DEMANDED

DEFENDANTS’ IDENTIFICATION OF EXTRINSIC EVIDENCE

Pursuant to the Court’s Scheduling Order,1 Defendants Dell Technologies Inc., Dell Inc., 

and EMC Corporation, (collectively, “Defendants”) hereby serves their Identification of Extrinsic 

Evidence in support of their January 20, 2021 Preliminary Proposed Claim Constructions.

By identifying extrinsic evidence below, Defendants do not concede that the cited material 

is necessary to construe the disputed claim term or that it is probative of the proper claim 

construction. Defendants reserve the right to rely on any evidence identified by Plaintiff in this 

case. In addition, Defendants may rely on one or more of the prior art systems or state of the art 

references identified in its invalidity contentions. Defendants may also rely on any references cited 

within the specifications of U.S. Patent Nos. 7,126,921; 7,212,536; 7,424,020; 7,453,888; 

 1 See No. 6:20-cv-00473-ADA, D.I. 50; No. 6:20-cv-00474-ADA, D.I. 55; No. 6:20-cv-00475-

ADA, D.I. 56; No. 6:20-cv-00476-ADA, D.I. 50; No. 6:20-cv-00477-ADA, D.I. 53; No. 6:20-cv00478-ADA, D.I. 57; No. 6:20-cv-00479-ADA, D.I. 54; No. 6:20-cv-00482-ADA, D.I. 53.

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 5 of 10
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7,565,435; 8,402,129; 8,913,489; and/or 9,137,144 (collectively, the “Asserted Patents”), or 

identified during prosecution of the Asserted Patents.

In accordance with the Scheduling Order, Defendants have produced extrinsic evidence 

and other materials in support of its preliminary constructions. See DELL-WSOU-CC_000001 –

DELL-WSOU-CC_000524.

Defendants reserve the right to rely on expert testimony for the claim terms and proposed 

constructions, including the level of skill of a person of ordinary skill in the art, and how one of 

ordinary skill in the art would interpret the terms. Defendants may additionally rely on expert 

testimony to rebut Plaintiff’s proposed meanings, expert testimony, or other evidence offered by 

Plaintiff in support of its proposed claim constructions. Defendants also reserve the right to 

provide relevant background testimony in response or rebuttal to any expert testimony or 

arguments that Plaintiff advances in support of its claim constructions.

Finally, Defendants reserve the right to amend this Identification of Extrinsic Evidence, as 

well as their proposed constructions, as additional information becomes available during discovery 

and the parties’ meet and confers, and after further analysis is conducted. Defendants reserve the 

right to rely on any future amendments or supplements to Plaintiff’s infringement contentions, 

particularly to the extent those statements may contradict the claim construction positions and 

arguments that Plaintiff may advance to the Court now. Defendants also reserve the right to amend 

their constructions and/or identify additional claim terms for construction in view of any proposed 

constructions presented by Plaintiff (or changes thereto), and to the extent necessary if the parties 

are unable to reach agreement regarding constructions proposed by either party.

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 6 of 10
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Dated: January 27, 2021 By: /s/ Brian A. Rosenthal

Barry K. Shelton

Texas State Bar No. 24055029

bshelton@sheltoncoburn.com

SHELTON COBURN LLP

311 RR 620, Suite 205

Austin, TX 78734-4775 

Telephone: 512.263.2165

Facsimile: 512.263.2166 

Benjamin Hershkowitz

bhershkowitz@gibsondunn.com

Brian A. Rosenthal

brosenthal@gibsondunn.com 

Allen Kathir

akathir@gibsondunn.com

Kyanna Sabanoglu

ksabanoglu@gibsondunn.com

GIBSON, DUNN & CRUTCHER LLP

200 Park Avenue

New York, NY 10166-0193 

Telephone: 212.351.4000

Facsimile: 212.351.4035 

Y. Ernest Hsin

ehsin@gibsondunn.com

Jaysen S. Chung

jschung@gibsondunn.com

GIBSON, DUNN & CRUTCHER LLP

555 Mission Street, Suite 3000

San Francisco, CA 94105-0921

Telephone: 415.393.8200

Facsimile: 415.393.8306

Ryan K. Iwahashi

riwahashi@gibsondunn.com

GIBSON, DUNN & CRUTCHER LLP

1881 Page Mill Road

Palo Alto, CA 94304-1211

Telephone: 650.849.5300

Facsimile: 650.849.5333

Attorneys for Defendants

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 7 of 10
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Certificate of Service

I hereby certify that on January 27, 2021, the foregoing document has been served by 

electronic mail on all counsel of record.

/s/ Russell Shapiro 

Russell Shapiro

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 8 of 10
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IDENTIFICATION OF EXTRINSIC EVIDENCE 

A. ’536 Patent

Claim Term, Clause, or Phrase Claim(s) Defendants’ Extrinsic Evidence

“bridge” 1, 12 Dictionary of Networking (2000) at 51.

ATIS Glossary at Bridge.

Data and Computer Communications, Stallings 

(1991) at 472.

Computer Networks, Tanenbaum (1996) at 

304-05.

Concise Telecom Networking Dictionary 

(2000) at 35-36.

Internetworking, Miller (1991) at 15-16.

TCP/IP and Related Protocols, Black (1992) at 

35.

Federal Standard 1037C: Telecommunications: 

Glossary of Telecommunications Terms 

(1996), “bridge.”

Telecommunications Industry Association’s 

Glossary of Telecommunication terms, 

“bridge.”

’489 Patent at 5:3-12.

’129 Patent at 2:20-31.

’020 Patent at 2:26-36.

“channel in a connection-based 

network”

1, 12 Dictionary of Networking (2000) at 51.

ATIS Glossary at Bridge.

Data and Computer Communications, Stallings 

(1991) at 472.

Computer Networks, Tanenbaum (1996) at 

304-05.

Concise Telecom Networking Dictionary 

(2000) at 35-36.

Internetworking, Miller (1991) at 15-16.

TCP/IP and Related Protocols, Black (1992) at 

35.

Federal Standard 1037C: Glossary of 

Telecommunications Terms (1996), “bridge.”

Telecommunications Industry Association’s 

Glossary of Telecommunication terms, 

“bridge.”

’489 Patent at 5:3-12.

’129 Patent at 2:20-31.

’020 Patent at 2:26-36.

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 9 of 10
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B. ’020 Patent

Claim Term, Clause, or Phrase Claim(s) Defendants’ Extrinsic Evidence

“bus system” 1, 6 ATIS Glossary at “bus topology.”

Concise Telecom Networking Dictionary 

(2000) at 38.

Federal Standard 1037C: 

Telecommunications: Glossary of 

Telecommunications Terms (1996), “bus 

topology.”

C. ’144 Patent

Claim Term, Clause, or Phrase Claim(s) Defendants’ Extrinsic Evidence

“contiguous communication path” 1, 11, 14 Newton’s Telecom Dictionary (2001) at 322.

Case 6:20-cv-00477-ADA Document 83-8 Filed 03/17/21 Page 10 of 10