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IP Verse

Aldehyde Production Process With Multi-Stage Condensation - EP2991957

The patent EP2991957 was granted to Oxea on Feb 19, 2020. The application was filed on Nov 11, 2013 under application number EP13793050A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP2991957

OXEA
Application Number
EP13793050A
Filing Date
Nov 11, 2013
Status
Patent Maintained As Amended
Jan 17, 2020
Publication Date
Feb 19, 2020
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
EVONIK OPERATIONSJan 26, 2018-ADMISSIBLE

Patent Citations (16) New

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

Citation PhasePublication Number
DESCRIPTIONUS4148830
DESCRIPTIONUS4593127
DESCRIPTIONUS5087763
DESCRIPTIONUS5105018
DESCRIPTIONUS5367106
DESCRIPTIONUS5648553
INTERNATIONAL-SEARCH-REPORTCN202148269U
INTERNATIONAL-SEARCH-REPORTEP0751110
INTERNATIONAL-SEARCH-REPORTUS5648553
OPPOSITIONCN202148269U
OPPOSITIONDE3412336
OPPOSITIONEP0016285
OPPOSITIONUS4479012
OPPOSITIONUS4640743
OPPOSITIONUS5648553
OPPOSITIONWO2014178912

Dossier Documents

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    Description

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