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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.

MICROSOFT CORPORATION,

Defendant.

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CIVIL ACTION 6:20-CV-00454-ADA 

CIVIL ACTION 6:20-CV-00455-ADA

CIVIL ACTION 6:20-CV-00456-ADA

CIVIL ACTION 6:20-CV-00457-ADA

CIVIL ACTION 6:20-CV-00458-ADA

CIVIL ACTION 6:20-CV-00459-ADA

CIVIL ACTION 6:20-CV-00460-ADA

CIVIL ACTION 6:20-CV-00461-ADA

CIVIL ACTION 6:20-CV-00462-ADA

CIVIL ACTION 6:20-CV-00463-ADA

CIVIL ACTION 6:20-CV-00464-ADA

CIVIL ACTION 6:20-CV-00465-ADA

JURY TRIAL DEMANDED

JOINT NOTICE CONCERNING AGREEMENT TO EXTEND DEADLINES

TO THE HONORABLE COURT:

Plaintiff WSOU Investments, LLC (“WSOU”) and Defendant Microsoft Corporation 

(“Microsoft”) (collectively, the “Parties”), pursuant to the Court’s Standing Order Regarding Joint 

or Unopposed Request to Change Deadline, submit this Joint Notice to memorialize their 

agreement to extend case deadlines. The Parties have agreed to adjust the Scheduling Order to 

afford the Parties more time to streamline the cases, to reduce the number of claims and prior art 

references currently at issue, to provide the parties more time to resolve outstanding discovery 

disputes, and additional time to complete depositions and further prepare for trial and expert 

discovery. The Parties have jointly agreed to modify the schedule as follows:

Case 6:20-cv-00454-ADA Document 91 Filed 09/15/21 Page 1 of 4
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Event

-455, -457, -459, -463 

(Xbox & HoloLens)

-456, -458, -460, -462, -

464, 454, -465, -461 

(Skype, Azure Monitor, 

NPM, NPS)

Close of Fact Discovery 10/29/2021 11/15/2021

Opening Expert Reports 11/8/2021 11/22/2021

Rebuttal Expert Reports 12/6/2021 12/20/2021

Close of Expert Discovery 1/6/2022 1/18/2022

Dispositive Motion Deadline 1/18/2022 1/31/2022

Serve Pretrial Disclosures 1/31/2022 2/14/2022

Objections/Rebuttal Disclosures 2/14/2022 2/28/2022

Motions In Limine 2/22/2022 3/7/2022

Joint Pretrial Order/Submissions 2/28/2022 3/14/2022

Remaining Pretrial Objections 3/14/2022 3/31/2022

Proposed Final Pretrial Conference 3/17/2022 4/4/2022

Proposed Trial 4/5/2022 4/18/2022

Date: September 15, 2021 Respectfully submitted,

/s/ Mark D. Siegmund

Mark D. Siegmund (TX Bar No. 24117055)

mark@waltfairpllc.com

LAW FIRM OF WALT FAIR, PLLC

1508 N. Valley Mills Drive 

Waco, TX 76710

Telephone: (254) 772-6400

Facsimile: (254) 772-6432

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 

Case 6:20-cv-00454-ADA Document 91 Filed 09/15/21 Page 2 of 4
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Brett@EtheridgeLaw.com 

Travis@EtheridgeLaw.com 

Jeff@EtheridgeLaw.com 

ATTORNEYS FOR PLAINTIFF WSOU 

INVESTMENTS, LLC d/b/a BRAZOS

LICENSING AND DEVELOPMENT

Date: September 15, 2021 Respectfully submitted,

/s/ Barry K. Shelton

Barry K. Shelton 

Texas State Bar No. 24055029

SHELTON COBURN LLP

311 RR 620 S, Suite 205

Austin, TX 78734

Telephone: (512) 263-2165

Fax: (512) 263-2166

bshelton@sheltoncoburn.com

Of Counsel

Michael J. Bettinger

Irene Yang

SIDLEY AUSTIN LLP

555 California St., Suite 2000

San Francisco, CA 94104

Telephone: (415) 772-1200

Fax: (415) 772-7400

mbettinger@sidley.com 

irene.yang@sidley.com 

Richard A. Cederoth

John W. McBride

SIDLEY AUSTIN LLP

1 South Dearborn St.

Chicago, IL 60603

Telephone: (312) 853-7000

Fax: (312) 853-7036

rcederoth@sidley.com 

jwmcbride@sidley.com 

Attorneys for Defendant Microsoft Corporation

Case 6:20-cv-00454-ADA Document 91 Filed 09/15/21 Page 3 of 4
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CERTIFICATE OF SERVICE

I hereby certify that all counsel of record who are deemed to have consented to electronic 

service are being served with a copy of this filing via the Court’s CM/ECF system per Local Rule 

CV-5(a) on September 15, 2021.

/s/ Barry K. Shelton

Barry K. Shelton

Case 6:20-cv-00454-ADA Document 91 Filed 09/15/21 Page 4 of 4