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SMS group GmbH vs. ArcelorMittal - EP4249141

EPO OPPOSITION Opposition

Status: Opposition Filed

Publication Number EP4249141

Filing Date 2026-09-17

Applicant / Office OPERATING METHOD FOR A ROLLING TRAIN

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POSCO Co., Ltd. et al. vs. ArcelorMittal

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2025-00371

Filing Date 2026-07-16

Decision Type Final Written Decision: DECISION Final Written Decision Determining All Challenged Claims Unpatentable 35 U.S.C. § 318(a)

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POSCO Co., Ltd. et al. vs. ArcelorMittal

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2025-00370

Filing Date 2026-07-16

Decision Type Final Written Decision: DECISION Final Written Decision Determining All Challenged Claims Unpatentable 35 U.S.C. § 318(a)

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ArcelorMittal vs. POSCO Co., Ltd - EP4263882

EPO OPPOSITION Opposition

Status: Opposition Filed

Publication Number EP4263882

Filing Date 2026-07-01

Applicant / Office COATED STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART AND METHOD OF MANUFACTURING THE SAME

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POSCO Co., Ltd. et al. vs. ARCELORMITTAL

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2024-01377

Filing Date 2025-08-19

Decision Type Termination Decision: ORDER TERMINATING IPR2024-01376 and IPR2024-01377 35 U.S.C. sec. 325d

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POSCO Co., Ltd. et al. vs. ARCELORMITTAL

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2024-01376

Filing Date 2025-08-19

Decision Type Termination Decision: ORDER TERMINATING IPR2024-01376 and IPR2024-01377 35 U.S.C. sec. 325d

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POSCO Co., Ltd. et al. vs. ArcelorMittal

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2025-00371

Filing Date 2025-07-23

Decision Type Decision Granting Institution of Inter Partes Review

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POSCO Co., Ltd. et al. vs. ArcelorMittal

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2025-00370

Filing Date 2025-07-23

Decision Type Decision Granting Institution of Inter Partes Review

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POSCO Co., Ltd. et al. vs. ARCELORMITTAL

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2024-01377

Filing Date 2025-03-18

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

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POSCO Co., Ltd. et al. vs. ARCELORMITTAL

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2024-01376

Filing Date 2025-03-18

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

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Posco vs. E-LAIN SAS

UPC Case Closed

Status: Case Filed

Case Number App_3790/2025

Filing Date 2025-01-23

Division / Action Paris (FR) Local Division

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POSCO Co., Ltd. et al. vs. ArcelorMittal

PTAB-CASES Final Written Decision

Status: Final Written Decision

Proceeding Number IPR2025-00371

Filing Date 2024-12-23

Cause / Proceeding IPR

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POSCO Co., Ltd. et al. vs. ArcelorMittal

PTAB-CASES Final Written Decision

Status: Final Written Decision

Proceeding Number IPR2025-00370

Filing Date 2024-12-23

Cause / Proceeding IPR

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ArcelorMittal vs. Hedin Automotive Luxembourg SA

UPC Case Closed

Status: Case Filed

Case Number UPC_CFI_583/2024

Filing Date 2024-10-15

Division / Action Paris (FR) Local Division

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POSCO Co., Ltd. et al. vs. ARCELORMITTAL

PTAB-CASES Terminated

Status: Terminated

Proceeding Number IPR2024-01377

Filing Date 2024-09-06

Cause / Proceeding IPR

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POSCO Co., Ltd. et al. vs. ARCELORMITTAL

PTAB-CASES Terminated

Status: Terminated

Proceeding Number IPR2024-01376

Filing Date 2024-09-06

Cause / Proceeding IPR

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ArcelorMittal v. VinFast Auto LLC

PATENT LITIGATION Litigation

Status: Litigation Filed

Docket Number 2:24-cv-03128

Filing Date 2024-04-16

Cause / Court 35:271 Patent Infringement

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POSCO vs. ArcelorMittal

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2019-01275

Filing Date 2021-01-05

Decision Type Termination Decision Document

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ArcelorMittal et al. vs. Array Technologies, Inc.

PTAB-DECISIONS Decision

Status: Decided

Proceeding Number IPR2018-00801

Filing Date 2019-10-02

Decision Type Final Written Decision

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POSCO vs. ArcelorMittal

PTAB-CASES Final Written Decision

Status: Final Written Decision

Proceeding Number IPR2019-01275

Filing Date 2019-06-28

Cause / Proceeding IPR

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