IP Verse

Rechargeable Lithium Ion Button Cell Battery - EP3477729

The patent EP3477729 was granted to Zhuhai ZHI LI Battery on Oct 29, 2025. The application was originally filed on Mar 10, 2014 under application number EP18208740A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3477729

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

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 DateOpposition Status

Get instant alerts for new oppositions and patent status changes

VARTA MICROBATTERYSep 25, 2020ADMISSIBLE

Patent Citations (12) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
DESCRIPTIONUS2011091753
DESCRIPTIONUS2012100406
EXAMINATIONUS2012015224
OPPOSITIONEP3477729
OPPOSITIONUS2011091753
OPPOSITIONUS2012100406
OPPOSITIONWO2010089152
SEARCHEP2443691
SEARCHJP2008262826
SEARCHUS2004048151
SEARCHUS2011091753
SEARCHUS2013045402

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

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