Explore PTAB cases, litigation, UPC, and oppositions – All in one place. Find the right case faster with powerful filters and structured results.

CasLoc is a comprehensive patent case research platform that bring together patent case data from multiple jurisdictions into a single streamlined platform. Designed to simplify how legal and IP professionals access, analyze, and track case information. From flexible search to structured case insights, everything is designed to reduce manual effort and helps to focus on analysis and decision-making.

Filters

Filing Date

From

Attorney

All Cases Feed

Global Patent Tracker

18 Found <

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00531

Filing Date 2026-08-31

Decision Type Decision

PDF View Details

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

PDF View Details

Microsoft Corporation et al. vs. Lemko Corporation

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2025-01142

Filing Date 2025-11-20

Decision Type Director Discretionary Decision: Deny

PDF View Details

Microsoft Corporation et al. vs. Lemko Corporation

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2025-01142

Filing Date 2025-11-06

Decision Type Institution Decision: Deny

PDF View Details

Microsoft Corporation et al. vs. Lemko Corporation

PTAB-CASES Institution Denied

Status: Discretionary Denial

Proceeding Number IPR2025-01142

Filing Date 2025-06-20

Cause / Proceeding IPR

View Details

Lemko Corporation v. AT&T Inc.

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 2:25-cv-00305

Filing Date 2025-03-17

Cause / Court 35:271 Patent Infringement

View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00531

Filing Date 2024-09-10

Decision Type Judgment Final Written Decision

PDF View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00529

Filing Date 2024-08-30

Decision Type Determining No Challenged Claims Unpatentable 35 U.S.C. § 318(a), 37 C.F.R. § 42.73

PDF View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00570

Filing Date 2023-09-26

Decision Type Denying Institution of Inter Partes Review 35 U.S.C. § 314

PDF View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00529

Filing Date 2023-09-26

Decision Type Granting Institution of Inter Partes Review 35 U.S.C. § 314

PDF View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00531

Filing Date 2023-09-25

Decision Type Institution Decision: Grant

PDF View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2023-00530

Filing Date 2023-09-25

Decision Type Institution Decision: Deny

PDF View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-CASES Institution Denied

Status: Institution Denied

Proceeding Number IPR2023-00570

Filing Date 2023-02-15

Cause / Proceeding IPR

View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-CASES Final Written Decision

Status: Final Written Decision

Proceeding Number IPR2023-00529

Filing Date 2023-02-15

Cause / Proceeding IPR

View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-CASES Final Written Decision

Status: Final Written Decision

Proceeding Number IPR2023-00531

Filing Date 2023-02-14

Cause / Proceeding IPR

View Details

Microsoft Corporation et al. vs. Lemko Corp.

PTAB-CASES Institution Denied

Status: Institution Denied

Proceeding Number IPR2023-00530

Filing Date 2023-02-14

Cause / Proceeding IPR

View Details

Lemko Corporation v. Microsoft Corporation

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 3:22-cv-00363

Filing Date 2022-02-14

Cause / Court 35:271 Patent Infringement

View Details

Zavala Licensing LLC v. Lemko Corporation

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 1:19-cv-02136

Filing Date 2019-03-27

Cause / Court 35:271 Patent Infringement

View Details

18 Found <