Method And Apparatus For Purifying Nitration Products

Patent No. EP2705020 (titled "Method And Apparatus For Purifying Nitration Products") was filed by Josef Meissner on May 18, 2012. The application was issued on Nov 5, 2025.

Patent Summary

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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 DateRepresentative
COVESTRO DEUTSCHLANDJan 7, 2016LEVPAT
NORAMDec 23, 2015M ZARDI

Dossier Documents

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EP2705020

JOSEF MEISSNER
Application Number
EP12723831A
Filing Date
May 18, 2012
Status
Patent Maintained As Amended
Oct 3, 2025
Publication Date
Nov 5, 2025