Microsoft Corporation vs. Qomplx LLC

Explore the PTAB proceeding IPR2026-00183 filed by Microsoft Corporation on 2026-01-14. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00183

Filing Date

2026-01-14

Accorded Filing Date

2026-01-14

Institution Decision Date

2026-06-12

Last Modified Date

2026-07-28

Proceeding Type

IPR

Termination Date

2026-06-12

Trial Status

Institution Denied

Parties & Counsel

Petitioner

Microsoft Corporation

Represented By

Mason, Andrewet al

Patent Owner / Respondent

Qomplx LLC

Represented By

WEATHERWAX, KENNETHet 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 16412340

Respondent Patent Number 11539663

External Links

Espacenet

Google Patents

Respondent Inventor Mike Chasman et al

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

Address and Attorney/Agent Information

10 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name NK Patent Law

Customer Number 115007

Address 4101 Lake Boone Trail, Suite 218, Raleigh, NC, 27607, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
39151	Christopher Cook	513-307-8268
44141	Andrew Hagerty	513-983-3762
56748	Wesley Sheffield	3217288444
59389	Justin Nifong	919-348-2194
65727	Douglas Meier	919-348-2194
68963	Aniruddha Agrawal	919-348-2194
69606	Cameron Applegate	919-348-2194
72169	Gregory Evans	919-348-2194
72576	Randolph Tucker	919-348-2194
78623	Taylor Langley	919-246-3955

Proceeding Documents

107

Notice of Refund NOTICE

2026-07-28 FILING PARTY: BOARD

Download

Petitioner's Request for Refund OTHER

2026-07-14 FILING PARTY: PETITIONER

Download

Institution Decision: Deny DECISION

2026-06-12 FILING PARTY: BOARD

Download

Patent Owner's Preliminary Sur-Reply OTHER

2026-05-18 FILING PARTY: PATENT OWNER

Download

Director Discretionary Decision: Refer RESPONSE

2026-05-15 FILING PARTY: BOARD

Download

Microsoft Corporation vs. Qomplx LLC

Proceeding Overview

Parties & Counsel

Petitioner

Microsoft Corporation

Represented By

Patent Owner / Respondent

Qomplx LLC

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Notice of Refund NOTICE

Petitioner's Request for Refund OTHER

Institution Decision: Deny DECISION

Patent Owner's Preliminary Sur-Reply OTHER

Director Discretionary Decision: Refer RESPONSE

E-mail extending deadline Exhibit

E-mail authorizing briefing Exhibit

Reply of Petitioner to Patent Owner’s Preliminary Response OTHER

Email Correspondence Exhibit

Petitioner's Updated Exhibit List NOTICE

Order Regarding Austin Division Docket, Qomplx LLC v. Microsoft Corporation, 1:25-cv-01383-ADA (W.D. Tex. Apr. 23, 2026) Exhibit

Microsoft Makes New $4B Data Center Investment in Wisconsin, Government Technology (Sept. 24, 2025) Exhibit

Exhibit C to Qomplx’s Preliminary Infringement Contentions (426 patent) Exhibit

Microsoft Corporation’s Opening Claim Construction Brief, Qomplx LLC v. Microsoft Corp., Case No. 1:25-cv-01383-ADA (W.D. Tex.) (Mar. 23, 2026) Exhibit

Return of Service (ECF No. 11), Qomplx LLC v. Microsoft Corporation, 1:25-cv-01383-ADA (W.D. Tex. Sept. 8, 2025) Exhibit

Ryan Autullo, “Judge Albright, Texas Patent Magnet, Leaving Bench In August (2),” Bloomberg Law, April 21, 2026 Exhibit

Exhibit E to Qomplx’s Preliminary Infringement Contentions (627 patent) Exhibit

Exhibit G to Qomplx’s Preliminary Infringement Contentions (628 patent) Exhibit

Petitioner's Opposition to Patent Owner's Discretionary Denial Brief RESPONSE

Microsoft Digital Defense Report 2024 – The Foundations and New Frontiers of Cybersecurity, Microsoft (2024) Exhibit

President Trump’s Cyber Strategy for America (March 2026) Exhibit

United States District Courts Judicial Caseload Profile (excerpt) Exhibit

Microsoft Digital Defense Report 2025 – Lighting the Path to a Secure Future, Microsoft (2025) Exhibit

Microsoft Announces $3.3 Billion Investment in Wisconsin to Spur Artificial Intelligence Innovation and Economic Growth, Microsoft (May 10, 2024) Exhibit

Complaint, Qomplx LLC v. Microsoft Corp., Case No. 1:25-cv-01383-ADA (W.D. Tex.) (Aug. 28, 2025) Exhibit

Annual Report 2025 Exhibit

Exhibit H to Qomplx’s Preliminary Infringement Contentions (628 patent) Exhibit

Department of Defense Announces Joint Warfighting Cloud Capability Procurement, U.S. Dept. of Defense (Dec. 7, 2022) Exhibit

Ex. 2033 - MAC Address Assignment from vCenter Server Exhibit

Ex. 2023 - IPR2026-00183 ('663) Malek Declaration Exhibit

Ex. 2031 - Windows Hyper-V server Exhibit

Ex. 2028 - ScaleComputing-Hypervisor Exhibit

Ex. 2030 - Virtual Machine MAC Address Exhibit

Judge Alan D. Albright Time to Trial, Docket Navigator (last visited Apr. 21, 2026) Exhibit

Plaintiff Qomplx LLC’s Responsive Claim Construction Brief, Qomplx LLC v. Microsoft Corp., Case No. 1:25-cv-01383-ADA (W.D. Tex.) (Apr. 13, 2026) Exhibit

Made in Wisconsin: The World’s Most Powerful AI Datacenter, Microsoft (Sept. 18, 2025) Exhibit

Exhibit F to Qomplx’s Preliminary Infringement Contentions (627 patent) Exhibit

Qomplx website capture (March 26, 2026) Exhibit

Plaintiff Qomplx LLC’s Preliminary Disclosure of Proposed Claim Constructions Exhibit

Exhibit D to Qomplx’s Preliminary Infringement Contentions (627 patent) Exhibit

Exhibit A to Qomplx’s Preliminary Infringement Contentions (424 patent) Exhibit

Exhibit B to Qomplx’s Preliminary Infringement Contentions (934 patent) Exhibit

Exhibit I to Qomplx’s Preliminary Infringement Contentions (663 patent) Exhibit

Ex. 2035 - Qomplx Responsive Claim Construction Brief Exhibit

Ex. 2026 - AWS - Virtualization Exhibit

Ex. 2032 - Scenario_ Manage the network configuration of virtual machines Exhibit

Ex. 2029 - PITT-MAC-Address Exhibit

Ex. 2034 - MSFT Opening Claim Construction Brief Exhibit

Ex. 2024 - Tencent Cloud Tech Encyclopedia Exhibit

Ex. 2025 - Spotfire Glossary Exhibit

PATENT OWNER’S PRELIMINARY RESPONSE POPR

Ex. 2027 - IBM-Virtualization Exhibit

Ex. 2018 - BusinessWire, QOMPLX and Tailwind Acquisition Corp. Mutually Agree To End Business Combination Exhibit

Ex. 2014 - Portworx Exhibit

Ex. 2022 - Albright Time to Trial Exhibit

Ex. 2012 - The Dakota Foundation, Team Exhibit

Ex. 2009 - West Point First Captains - West Point Association of Graduates Exhibit

Ex. 2017 - SEC FAQ Exhibit

Ex. 2013 - MSSPAlert, SPAC Cybersecurity Merger Exhibit

Patent Owner's Discretionary Denial Brief RESPONSE

Ex. 2021 - Ready, set, compete! USPTO Exhibit

Ex. 2004 - 2026.01.26 Microsoft's Preliminary Invalidity Contentions Exhibit

Ex. 2020 - 2024 Veterans Innovation and Entrepreneurship Program _ USPTO Exhibit

Ex. 2008 - EP. 3 Taking Qomplx Public via SPAC with Jason Crabtree ’08 — Old Grad Club Exhibit

Ex. 2015 - Yahoo! Finance, QOMPLX CEO Jason Crabtree Wins Exhibit