IP Verse

Rechargeable Lithium Ion Button Cell Battery

Patent No. EP3477729 (titled "Rechargeable Lithium Ion Button Cell Battery") was filed by Zhuhai ZHI LI Battery on Mar 10, 2014. The application was issued on Oct 29, 2025.

Patent Summary

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
VARTA MICROBATTERYSep 25, 2020OSTERTAG & PARTNER PATENTANWALTE MBB

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents

EP3477729

ZHUHAI ZHI LI BATTERY
Application Number
EP18208740A
Filing Date
Mar 10, 2014
Status
Patent Maintained As Amended
Sep 26, 2025
Publication Date
Oct 29, 2025
External Links
Slate, Register , Google Patents