Privakey, Inc. v. Cisco Systems, Inc.

2:25-cv-00984

Overview

Case Number 2:25-cv-00984

Filing Date 2025-10-01

Status Litigation filed

Court District Court, E.D. Texas (txed)

Presiding Judge Rodney Gilstrap

Nature of Suit 830 Patent

Jurisdiction Type Federal Question

Cause of Action 35:271 Patent Infringement

Jury Demand Both

Parties

Defendant

Cisco Systems, Inc.

Represented By

13 Attorneys Listed

Yana Nebuchina

Gibson, Dunn & Crutcher

Tel: +1 (415) 425-4418

Gibson, Dunn & Crutcher, California

Stuart Hene

Findlay Craft, P.C.

Tel: +1 (903) 534-1100

7270 Crosswater Avenue, Suite B, Tyler, TX 75703

Shaun William Hassett

Potter Minton

Tel: +1 (903) 525-2272

Potter Minton, TX

Nathaniel Ryan Scharn

California

Tel: +1 (949) 451-3800

California, 3161 Michelson Drive

Nathan Gershengorin

Gibson, Dunn & Crutcher LLP

Tel: +1 (212) 351-2440

200 Park Avenue, New York, NY 10166-0193

Michael E Jones

Potter Minton

Tel: +1 (903) 525-2239

Potter Minton, 102 North College

Krishnan Padmanabhan

Fenwick & West LLP

Tel: +1 (212) 430-2600

902 Broadway, 18th Floor

Julian Manasse-Boetani

Gibson, Dunn & Crutcher, LLP

Tel: +1 (415) 290-8257

One Embarcadero, 355 Clay Street

Jaysen S. Chung

Gibson, Dunn & Crutcher LLP

Tel: +1 (415) 393-8271

Fax: +1 (415) 374-8405

One Embarcadero Center, Suite 2600

Danielle Zapata Mills

Gibson, Dunn & Crutcher LLP

Tel: +1 (212) 351-5373

200 Park Avenue, New York, NY 10166

Charles Mackenzie Sim

Gibson, Dunn &Crutcher LLP

Tel: +1 (212) 351-6274

200 Park Avenue, New York, NY 10166-0193

Eric Hugh Findlay

Findlay Craft, P.C.

Tel: +1 (903) 534-1100

Fax: +1 (903) 534-1137

7270 Crosswater Avenue, Suite B

Brian Ashley Rosenthal

Gibson Dunn & Crutcher, LLP - NYC

Tel: +1 (212) 351-2339

Fax: +1 (212) 817-9539

200 Park Ave, 48th Floor

Plaintiff

Privakey, Inc.

Represented By

11 Attorneys Listed

Patrick Michael Dunn

Brown Rudnick LLP

Tel: +1 (281) 849-6186

609 Main Street, Suite 3550

Michael Charles Smith

Scheef & Stone, LLP

Tel: +1 (903) 938-8900

113 E. Austin St., Marshall, TX 75670

John Stefan Spisak

Brown Rudnick LLP

Tel: +1 (202) 536-1706

1900 N Street NW, Washington, DC 20036

Jayne C Piana

Brown Rudnick LLP

Tel: +1 (281) 849-4778

609 Main Street, Suite 3550

Jayme Partridge

Brown Rudnick LLP

Tel: +1 (281) 849-4790

609 Main Street, Suite 3550

Ian G. DiBernardo

Brown Rudnick LLP

Tel: +1 (212) 209-4879

Seven Times Square, New York, NY 10036

Homayoon Rafatijo

Brown Rudnick LLP

Tel: +1 (202) 536-1724

1900 N Street NW, Washington, DC 20036

Harold Stewart Laidlaw

Brown Rudnick LLP

Tel: +1 (212) 209-4980

Seven Times Square, New York, NY 10036

Caroline Emilie Brown

Scheef & Stone LLP

Tel: +1 (214) 706-4206

Fax: +1 (214) 706-4242

500 N. Akard St., Suite #2700

Austin Ciuffo

Brown Rudnick LLP

Tel: +1 (281) 849-3142

609 Main Street, Suite 3550

Erick Scott Robinson

Cherry Johnson Siegmund James PC

Tel: +1 (713) 498-6047

Cherry Johnson Siegmund James PC, 8140 Walnut Hill Lane

Court & Judges

Court

District Court, E.D. Texas (txed)

Presiding Judge

Rodney Gilstrap

Patents Involved

3 Patents

There are 3 patents involved in this case.

Application Number	Patent Number	External Links
-	US9813400	Espacenet Google Patents
-	US10348715	Espacenet Google Patents
-	US10904234	Espacenet Google Patents

Docket Entries

COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11121297.), filed by Privakey, Inc.. (Attachments: # 1 Exhibit A - US Pat. No. 9,813,400, # 2 Exhibit B - US Pat. No. 10,348,715, # 3 Exhibit C - US Pat. No. 10,904,234, # 4 Exhibit D - 400 Claim Chart, # 5 Exhibit E - 715 Claim Chart, # 6 Exhibit F - 234 Claim Chart, # 7 Civil Cover Sheet)(Robinson, Erick) (Entered: 10/01/2025)

2025-10-01

Download

Notice of Filing of Patent/Trademark Form (AO 120). AO 120 emailed to the Director of the U.S. Patent and Trademark Office. (Robinson, Erick) (Entered: 10/01/2025)

2025-10-01

View

Fed. R. Civ. P. 7.1(a)(1) Disclosure Statement filed by Privakey, Inc. (Robinson, Erick) (Entered: 10/01/2025)

2025-10-01

View

Summons issued as to Cisco Systems, Inc. c/o its Registered Agent Corporation Service Company (d/b/a CSC-Lawyers Incorporating Service Company). (NKL) (Entered: 10/01/2025)

2025-10-01

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Privakey, Inc. v. Cisco Systems, Inc.

Overview

Parties

Defendant

Cisco Systems, Inc. Follow

Represented By

Plaintiff

Privakey, Inc. Follow

Represented By

Court & Judges

Patents Involved

Docket Entries

Notice of Filing of Patent/Trademark Form (AO 120). AO 120 emailed to the Director of the U.S. Patent and Trademark Office. (Robinson, Erick) (Entered: 10/01/2025)

Fed. R. Civ. P. 7.1(a)(1) Disclosure Statement filed by Privakey, Inc. (Robinson, Erick) (Entered: 10/01/2025)

Summons issued as to Cisco Systems, Inc. c/o its Registered Agent Corporation Service Company (d/b/a CSC-Lawyers Incorporating Service Company). (NKL) (Entered: 10/01/2025)

Case assigned to District Judge Rodney Gilstrap. (NKL)

Case Assigned/Reassigned

Notice of Magistrate Judge Availability

Unopposed Application for Extension of Time to Answer Complaint filed by Cisco Systems, Inc. Summons originally served on October 2, 2025. Agreed new answer date is December 7, 2025.(Findlay, Eric) (Entered: 10/03/2025)

Unopposed Application for Extension of Time to Answer Complaint is granted. Cisco Systems, Inc. answer is now due 12/7/2025. (Text entry only, no document attached.)(NKL) (Entered: 10/03/2025)

Clerk's Entry re Unopposed Application for Extension of Time to Answer Complaint

Summons returned executed by Privakey, Inc.. Cisco Systems, Inc. served on 10/2/2025. (Robinson, Erick) (Entered: 10/07/2025)

NOTICE of Attorney Appearance by Patrick Michael Dunn on behalf of Privakey, Inc. (Dunn, Patrick) (Entered: 10/13/2025)

NOTICE of Attorney Appearance by Jayme Partridge on behalf of Privakey, Inc. (Partridge, Jayme) (Entered: 10/13/2025)

NOTICE of Attorney Appearance by Harold Stewart Laidlaw on behalf of Privakey, Inc. (Laidlaw, Harold) (Entered: 10/14/2025)

ORDER - Scheduling/Case Management Conference set for 11/24/2025 at 09:30 AM before District Judge Rodney Gilstrap. Signed by District Judge Rodney Gilstrap on 10/20/2025. (NKL) (Entered: 10/20/2025)

NOTICE of Attorney Appearance by Michael Charles Smith on behalf of Privakey, Inc. (Smith, Michael) (Entered: 11/18/2025)

NOTICE of Attorney Appearance by Caroline Emilie Brown on behalf of Privakey, Inc. (Brown, Caroline) (Entered: 11/20/2025)

NOTICE of Attorney Appearance by Ian G. DiBernardo on behalf of Privakey, Inc. (DiBernardo, Ian) (Entered: 11/21/2025)

NOTICE of Attorney Appearance by John Stefan Spisak on behalf of Privakey, Inc. (Spisak, John) (Entered: 11/21/2025)

NOTICE of Attorney Appearance by Jayne C Piana on behalf of Privakey, Inc. (Piana, Jayne) (Entered: 11/21/2025)

NOTICE of Attorney Appearance by Homayoon Rafatijo on behalf of Privakey, Inc. (Rafatijo, Homayoon) (Entered: 11/21/2025)

NOTICE of Attorney Appearance by Austin Ciuffo on behalf of Privakey, Inc. (Ciuffo, Austin) (Entered: 11/21/2025)

NOTICE of Attorney Appearance by Stuart Hene on behalf of Cisco Systems, Inc. (Hene, Stuart) (Entered: 11/23/2025)

UNOPPOSED MOTION to Withdraw as Attorney Erick S. Robinson by Privakey, Inc.. (Attachments: # 1 Proposed Order)(Partridge, Jayme) (Entered: 11/24/2025)

ORDER granting 20 Motion to Withdraw as Attorney. Attorney Erick Scott Robinson terminated. Signed by District Judge Rodney Gilstrap on 11/25/2025. (NKL) (Entered: 11/25/2025)

Scheduling Conference/Case Management Conference

NOTICE of Attorney Appearance by Brian Ashley Rosenthal on behalf of Cisco Systems, Inc. (Rosenthal, Brian) (Entered: 12/01/2025)

NOTICE of Attorney Appearance by Shaun William Hassett on behalf of Cisco Systems, Inc. (Hassett, Shaun) (Entered: 12/02/2025)

NOTICE of Attorney Appearance by Michael E Jones on behalf of Cisco Systems, Inc. (Jones, Michael) (Entered: 12/02/2025)

UNOPPOSED MOTION to Withdraw as Attorney Regarding Findlay Craft, P.C. by Cisco Systems, Inc.. (Attachments: # 1 Proposed Order)(Findlay, Eric) (Entered: 12/03/2025)

ORDER granting 26 Motion to Withdraw as Attorney. Attorney Eric Hugh Findlay and Stuart Hene terminated. Signed by District Judge Rodney Gilstrap on 12/4/2025. (NKL) (Entered: 12/04/2025)

NOTICE of Attorney Appearance by Jaysen S. Chung on behalf of Cisco Systems, Inc. (Chung, Jaysen) (Entered: 12/08/2025)

NOTICE of Attorney Appearance by Danielle Zapata Mills on behalf of Cisco Systems, Inc. (Mills, Danielle) (Entered: 12/08/2025)

JOINT MOTION for Extension of Time to File Discovery Order by Cisco Systems, Inc.. (Attachments: # 1 Proposed Order)(Rosenthal, Brian) (Entered: 12/08/2025)

Defendant's ANSWER to 1 Complaint, by Cisco Systems, Inc..(Rosenthal, Brian) (Entered: 12/08/2025)

DEMAND for Trial by Jury by Cisco Systems, Inc.. (Rosenthal, Brian) (Entered: 12/08/2025)

Fed. R. Civ. P. 7.1(a)(1) Disclosure Statement filed by Cisco Systems, Inc. (Rosenthal, Brian) (Entered: 12/08/2025)

Notice of Magistrate Judge Availability

ORDER granting 30 Motion for Extension of Time to File Discovery Order. Signed by District Judge Rodney Gilstrap on 12/10/2025. (NKL) (Entered: 12/10/2025)

NOTICE of Attorney Appearance - Pro Hac Vice by Yana Nebuchina on behalf of Cisco Systems, Inc.. Filing fee $ 100, receipt number ATXEDC-11256487. (Nebuchina, Yana) (Entered: 12/11/2025)

NOTICE of Attorney Appearance - Pro Hac Vice by Nathaniel Ryan Scharn on behalf of Cisco Systems, Inc.. Filing fee $ 100, receipt number ATXEDC-11256575. (Scharn, Nathaniel) (Entered: 12/11/2025)

NOTICE of Attorney Appearance by Charles Mackenzie Sim on behalf of Cisco Systems, Inc. (Sim, Charles) (Entered: 12/12/2025)

NOTICE of Attorney Appearance - Pro Hac Vice by Julian Manasse-Boetani on behalf of Cisco Systems, Inc.. Filing fee $ 100, receipt number ATXEDC-11257656. (Manasse-Boetani, Julian) (Entered: 12/12/2025)

JOINT MOTION to Amend/Correct 35 Scheduling Order/Docket Control Order, by Cisco Systems, Inc.. (Attachments: # 1 First Amended Docket Control Order)(Hassett, Shaun) (Entered: 12/12/2025)

JOINT MOTION Entry of Discovery Order by Privakey, Inc.. (Attachments: # 1 Proposed Order)(Partridge, Jayme) (Entered: 12/15/2025)

JOINT MOTION for Protective Order by Privakey, Inc.. (Attachments: # 1 Proposed Order)(Partridge, Jayme) (Entered: 12/15/2025)

NOTICE OF COMPLIANCE by Cisco Systems, Inc. regarding Initial and Additional Disclosures (Hassett, Shaun) (Entered: 12/16/2025)

FIRST AMENDED DOCKET CONTROL ORDER re 40 Motion to Amend/Correct Docket Control Order. Signed by District Judge Rodney Gilstrap on 12/15/2025. (NKL) (Entered: 12/16/2025)

NOTICE of Attorney Appearance by Nathan Gershengorin on behalf of Cisco Systems, Inc. (Gershengorin, Nathan) (Entered: 12/16/2025)

DISCOVERY ORDER re 41 Motion Entry of Discovery Order. Signed by District Judge Rodney Gilstrap on 12/16/2025. (NKL) (Entered: 12/17/2025)

PROTECTIVE ORDER (Motion(s) 42 terminated). Signed by District Judge Rodney Gilstrap on 12/16/2025. (NKL) (Entered: 12/17/2025)

JOINT MOTION for Entry of Agreed E-Discovery Order by Privakey, Inc.. (Attachments: # 1 Proposed Order)(Partridge, Jayme) (Entered: 01/28/2026)

E-DISCOVERY ORDER re 48 Motion for Entry of Agreed E-Discovery Order. Signed by District Judge Rodney Gilstrap on 2/2/2026. (NKL) (Entered: 02/02/2026)

NOTICE of Attorney Appearance - Pro Hac Vice by Krishnan Padmanabhan on behalf of Cisco Systems, Inc.. Filing fee $ 100, receipt number ATXEDC-11352383. (Padmanabhan, Krishnan) (Entered: 02/05/2026)

UNOPPOSED MOTION to Withdraw as Attorney Yana Nebuchina by Cisco Systems, Inc.. (Attachments: # 1 Proposed Order)(Rosenthal, Brian) (Entered: 04/30/2026)

ORDER granting 51 Motion to Withdraw as Attorney. Attorney Yana Nebuchina terminated. Signed by District Judge Rodney Gilstrap on 5/1/2026. (NKL) (Entered: 05/04/2026)

Withdraw as Attorney

Order on Motion to Withdraw as Attorney

Sealed Motion

Notice (Other)

Notice of Attorney Appearance - Pro Hac Vice

Response in Opposition to Motion

Sealed Response to Motion

Claim Construction Chart/Prehearing Statement

Notice of Attorney Appearance

Redacted Document

Sealed Reply to Response to Motion

Additional Attachments to Main Document

Notice of Attorney Appearance

Cisco Systems, Inc.

Privakey, Inc.