Cisco Systems, Inc. vs. Dynamic Mesh Networks, Inc. d/b/a MeshDynamics

Explore the PTAB proceeding IPR2026-00127 filed by Cisco Systems, Inc. on 2025-11-21. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00127

Filing Date

2025-11-21

Accorded Filing Date

2025-11-21

Institution Decision Date

2026-03-17

Last Modified Date

2026-04-17

Proceeding Type

IPR

Termination Date

2026-03-17

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Cisco Systems, Inc.

Represented By

CHO, TAEG SANGet al

Patent Owner / Respondent

Dynamic Mesh Networks, Inc. d/b/a MeshDynamics

Represented By

Bernard, Elizabethet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2400 - Computer Networks, Multiplex & Cybersecurity

Patent Information

1 Patent Involved

Respondent Application Number 12352457

Respondent Patent Number 8477762

External Links

Espacenet

Google Patents

Respondent Inventor Francis daCosta et al

Respondent Tech Center TC 2400 - Computer Networks, Multiplex & Cybersecurity

Address and Attorney/Agent Information

4 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name MICHAEL J. CHERSKOV - SZYMON M. GURDA

Customer Number —

Address 903 COMMERCE DR, SUITE 310, OAK BROOK, IL, 60523, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
30836	Donald Flaynik Jr	815-467-4333
33664	Michael Cherskov	312-621-1330
58451	Szymon Gurda	312-621-1330
84142	Yi Lu	312-621-1330

Proceeding Documents

Notice: refund approved NOTICE

2026-04-08 FILING PARTY: BOARD

Download

Petitioner's Request for Refund of Post-Institution Fees OTHER

2026-04-06 FILING PARTY: PETITIONER

Download

Director Discretionary Decision: Deny RESPONSE

2026-03-17 FILING PARTY: BOARD

Download

Petitioner's Corrected Opposition to PO's Discretionary Denial Brief RESPONSE

2026-03-05 FILING PARTY: PETITIONER

Download

3101

Email Correspondence Exhibit

2026-03-05 FILING PARTY: BOARD

Download

Cisco Systems, Inc. vs. Dynamic Mesh Networks, Inc. d/b/a MeshDynamics

Proceeding Overview

Parties & Counsel

Petitioner

Cisco Systems, Inc.

Represented By

Patent Owner / Respondent

Dynamic Mesh Networks, Inc. d/b/a MeshDynamics

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice: refund approved NOTICE

Petitioner's Request for Refund of Post-Institution Fees OTHER

Director Discretionary Decision: Deny RESPONSE

Petitioner's Corrected Opposition to PO's Discretionary Denial Brief RESPONSE

Email Correspondence Exhibit

Exhibit 2026 Exhibit

Patent Owner's Preliminary Response POPR

EX1018 - Transaction History of U.S. 8,520,691 Exhibit

EX1023 - U.S. Patent No. 8,520,691 Exhibit

EX1019 - Transaction History of U.S. 8,477,762 Exhibit

EX1017 - Transaction History of U.S. 7,420,952 Exhibit

EX1021 - U.S. Patent No. 8,514,852 Exhibit

EX1027 - File History of U.S. Patent No. 7,420,952 Exhibit

EX1028 - File History of U.S. Patent No. 8,520,691 Exhibit

EX1016 - E.D. Tex. Case Management Statistics Exhibit

EX1022 - U.S. Patent No. 7,420,952 Exhibit

EX1025 - Complaint, Dynamic Mesh Networks, Inc. d/b/a MeshDynamics v. Cisco Systems, Inc., No. 2:25-cv-00781 Exhibit

EX1026 - Cisco Gets Hip to Mesh, Large WLANs Exhibit

EX1024 - U.S. Patent No. 7,894,385 Exhibit

EX1020 - Disclaimer of U.S. 11,368,537 Exhibit

Exhibit 2024 Exhibit

Exhibit 2016 Exhibit

Exhibit 2013 Exhibit

Exhibit 2018 Exhibit

Exhibit 2002 Exhibit

Exhibit 2021 Exhibit

Exhibit 2017 Exhibit

Exhibit 2014 Exhibit

Exhibit 2019 Exhibit

Exhibit 2004 Exhibit

Exhibit 2023 Exhibit

Exhibit 2005 Exhibit

Exhibit 2007 Exhibit

Exhibit 2003 Exhibit

Exhibit 2025 Exhibit

Exhibit 2020 Exhibit

Patent Owner's Discretionary Denial Brief RESPONSE

Exhibit 2022 Exhibit

Patent Owner's Updated Mandatory Notice NOTICE

Petitioner's Updated Exhibit List NOTICE

EX1015 - Sotera Stipulation Exhibit

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

EX1002 - Expert Decl (Hansen) Exhibit

EX1011- US20110199953A1 (Seok) Exhibit

Cisco's Petition for IPR of the 762 Patent: as filed PETITION

EX1006 - US20060126611A1 (Kelly) Exhibit

EX1008 - 7,583,648 FH Exhibit

EX1010 - US7120136 (Upp) Exhibit

EX1004 - US20080098121A1 (Wu) Exhibit

EX1003 - US20050138119 A1 (Saridakis) Exhibit

EX1007 - US8477762 FH Exhibit

Notice: Petitioner's Power of Attorney NOTICE

EX1009 - US20080198873A1 (Huang) Exhibit

EX1013 - US20060143304A1 (Bodlaender) Exhibit

EX1014 - Hansen CV Exhibit

EX1012 - US7454171 (Palin) Exhibit

EX1001 - US8477762 (da Costa) Exhibit

EX1005 - US20070140239A1 (Bauer) Exhibit