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IP Verse

Extraction Process For High-Boiling Aldehyde Product Separation And Catalyst Recovery - EP3696160

The patent EP3696160 was granted to Dairen Chemical on May 10, 2023. The application was filed on Feb 14, 2020 under application number EP20157390A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3696160

DAIREN CHEMICAL
Application Number
EP20157390A
Filing Date
Feb 14, 2020
Status
Granted And Under Opposition
Apr 7, 2023
Publication Date
May 10, 2023
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
OQ CHEMICALSFeb 12, 2024MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBBADMISSIBLE
OXEAFeb 12, 2024MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBBADMISSIBLE

Patent Citations (18) New

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

Citation PhasePublication Number
DESCRIPTIONJPH08165266
DESCRIPTIONJPH08337550
DESCRIPTIONJPH10130190
DESCRIPTIONJPH1045776
DESCRIPTIONJPS61501268
DESCRIPTIONUS2239566
DESCRIPTIONUS3168553
DESCRIPTIONUS3511880
DESCRIPTIONUS6365782
OPPOSITIONEP1204623
OPPOSITIONUS4678857
OPPOSITIONUS4845306
OPPOSITIONUS5138101
OPPOSITIONUS5648554
OPPOSITIONUS6365782
OPPOSITIONUS7638656
SEARCHUS2009171125
SEARCHUS6365782

Dossier Documents

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    Description

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