The weekly litigation news digest is live. Subscribe now

IP Verse

Cr-Mn-N Austenitic Heat-Resistant Steel And A Method For Manufacturing The Same - EP3287540

The patent EP3287540 was granted to Tianjin NEW WEI SAN Industrial on Mar 17, 2021. The application was filed on Aug 25, 2017 under application number EP17187909A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3287540

TIANJIN NEW WEI SAN INDUSTRIAL
Application Number
EP17187909A
Filing Date
Aug 25, 2017
Status
Granted And Under Opposition
May 22, 2020
Publication Date
Mar 17, 2021
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

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 DateRepresentativeOpposition Status
LKGLOBAL UKAug 3, 2020INGRASSIA -
LKGLOBAL UKAug 3, 2020LKGLOBAL UK -

Patent Citations (9) New

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

Citation PhasePublication Number
DESCRIPTIONCN103898397
DESCRIPTIONCN103898398
OPPOSITIONCN103805876
OPPOSITIONEP2980253
SEARCHCN103667587
SEARCHCN103805876
SEARCHEP2980253
SEARCHUS4929419
SEARCHUS5019332

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