Global Patent Case Tracking and Litigation Research Platform

CasLoc is a patent case tracking and research platform covering patent litigation, PTAB proceedings, UPC cases and EPO oppositions. Built for patent attorneys, law firms and IP professionals, it lets you search by party, proceeding number or attorney, filter by filing date, and get free email alerts on new filings and decisions.

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Microsoft Corporation vs. Qomplx LLC

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00325

Filing Date 2026-10-21

Decision Type Decision

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LearnMaster LLC v. Microsoft Corporation

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 7:26-cv-00426

Filing Date 2026-10-20

Cause / Court 35:271 Patent Infringement

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Microsoft Corporation vs. Qomplx LLC

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00298

Filing Date 2026-10-19

Decision Type Decision

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Virsec Systems, Inc. v. Microsoft Corporation

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 1:26-cv-02934

Filing Date 2026-10-16

Cause / Court 35:271 Patent Infringement

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Microsoft Corporation vs. Qomplx LLC

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00325

Filing Date 2026-10-08

Decision Type Decision

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NextGen Innovations, LLC v. Microsoft Corporation

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 2:26-cv-00880

Filing Date 2026-10-02

Cause / Court 35:271 Patent Infringement

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Carpmaels & Ransford LLP vs. Suinno Mobile & Ai Technologies Licensing Oy

UPC Written Phase

Status: Case Filed

Case Number UPC-COA-0000156/2026

Filing Date 2026-09-16

Division / Action Luxembourg (LU)

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Carpmaels & Ransford LLP vs. Microsoft Corp

UPC Written Phase

Status: Case Filed

Case Number UPC-COA-0000155/2026

Filing Date 2026-09-16

Division / Action Luxembourg (LU)

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Microsoft Corporation vs. Sterling Computers Corporation

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2025-00270

Filing Date 2026-09-14

Decision Type Decision

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Dayal Family LLC v. Microsoft Corporation

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 2:26-cv-00805

Filing Date 2026-09-10

Cause / Court 35:271 Patent Infringement

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Microsoft Corporation vs. Qomplx LLC

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00326

Filing Date 2026-09-02

Decision Type Decision

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Microsoft Corporation vs. Qomplx LLC

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00326

Filing Date 2026-09-02

Decision Type Institution Decision: Grant

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Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00531

Filing Date 2026-08-31

Decision Type Decision

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Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00531

Filing Date 2026-08-31

Decision Type Other: Fed Circuit mandate

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Sandpiper CDN, LLC v. Microsoft Corporation

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 2:26-cv-00681

Filing Date 2026-08-11

Cause / Court 35:271 Patent Infringement

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Microsoft Corporation vs. ToutVirtual, Inc.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00297

Filing Date 2026-08-06

Decision Type Director Discretionary Decision: Deny

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Microsoft Corporation vs. ToutVirtual, Inc.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00296

Filing Date 2026-08-06

Decision Type Director Discretionary Decision: Deny

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Microsoft Corporation vs. ToutVirtual, Inc.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00295

Filing Date 2026-08-06

Decision Type Director Discretionary Decision: Deny

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Microsoft Corporation vs. Qomplx LLC

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2026-00298

Filing Date 2026-07-28

Decision Type Institution Decision: Grant

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Microsoft Corporation et al. vs. InterDigital Patent Holdings, Inc. et al.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2024-00538

Filing Date 2026-07-22

Decision Type Fed. Cir. Order Dismissing Appeal

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