The Weekly Litigation News Digest is now live. Subscribe now

Parallel-Flow Regenerative Shaft Kiln And Method For Calcining Carbonate Rock - EP4182281

The patent EP4182281 was granted to Maerz Ofenbau on Jun 12, 2024. The application was originally filed on Jul 7, 2021 under application number EP21748796A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4182281

MAERZ OFENBAU
Application Number
EP21748796A
Filing Date
Jul 7, 2021
Status
Granted And Under Opposition
May 10, 2024
Publication Date
Jun 12, 2024
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

Get instant alerts for new oppositions and patent status changes

LHOIST RECHERCHE ET DEVELOPPEMENTMar 11, 2025CALYSTAADMISSIBLE

Patent Citations (6) New

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

Citation PhasePublication Number
DESCRIPTIONWO2011072894
INTERNATIONAL-SEARCH-REPORTRU2724835
OPPOSITIONAT390248B
OPPOSITIONFR2436346
OPPOSITIONFR2492076
OPPOSITIONWO2022017796

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