Production Method for Valuable Metals Patent

ChangeBridge: EPO Bulletin - Batteries (H01M)

Published March 25th, 2026

Detected April 1st, 2026

Summary

The European Patent Office published patent EP4484593A1 for Sumitomo Metal Mining Co., Ltd. covering a method for producing valuable metals (C22B 7/00, C22B 15/00, C22B 23/02 classifications). The patent, with priority date September 1, 2023, was published March 25, 2026, and includes H01M 10/54 classification indicating potential application in battery recycling.

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What changed

The EPO published patent application EP4484593A1 for Sumitomo Metal Mining Co., Ltd., inventors YAMASHITA Yu, MAEBA Kazunari, and NAGAKURA Toshihiko. The patent covers a production method for valuable metals with classifications including C22B 7/00 (waste processing), C22B 15/00 (copper), C22B 23/02 (nickel/cobalt), and H01M 10/54 (battery recycling). The designated states cover all EPO member states including DE, FR, GB, IT, NL, and others.

Patent publications are informational announcements of intellectual property grants. Companies in battery recycling, metals recovery, or electric vehicle supply chains should review this patent to understand existing IP claims in valuable metals production. No regulatory compliance actions are required from this publication.

Source document (simplified)

← EPO Patent Bulletin

PRODUCTION METHOD FOR VALUABLE METALS

Publication EP4484593A1 Kind: A1 Mar 25, 2026

Applicants

SUMITOMO METAL MINING CO., LTD.

Inventors

YAMASHITA Yu, MAEBA Kazunari, NAGAKURA Toshihiko

IPC Classifications

C22B 7/00 20060101AFI20230901BHEP C22B 15/00 20060101ALI20230901BHEP C22B 23/02 20060101ALI20230901BHEP B09B 3/40 20220101ALI20230901BHEP H01M 10/54 20060101ALI20230901BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

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