The weekly litigation news digest is live. Subscribe now

IP Verse

Method And Roller Mill For Thermomechanically Activating A Clay Mixture - EP3909682

The patent EP3909682 was granted to Gebr Pfeiffer on Apr 6, 2022. The application was filed on May 14, 2020 under application number EP20174635A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3909682

GEBR PFEIFFER
Application Number
EP20174635A
Filing Date
May 14, 2020
Status
Granted And Under Opposition
Mar 4, 2022
Publication Date
Apr 6, 2022
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 DateRepresentativeOpposition Status
THYSSENKRUPP POLYSIUSDec 1, 2022TETZNERADMISSIBLE

Patent Citations (15) New

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

Citation PhasePublication Number
DESCRIPTIONDE102011014498
DESCRIPTIONDE102016005285
DESCRIPTIONEP2253600
DESCRIPTIONEP2429966
DESCRIPTIONWO2005019129
DESCRIPTIONWO2018195624
OPPOSITIONDE102011014498
OPPOSITIONDE69401104T
OPPOSITIONGB1080605
SEARCHCN206853810U
SEARCHDE102011014498
SEARCHDE102013213005
SEARCHDE10305915
SEARCHWO2017072047
SEARCHWO2020025783

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