IP Verse

Method For Co-Production Of Low-Carbon Foaming Agent - EP3659994

The patent EP3659994 was granted to Zhejiang Quhua Fluor Chemistry on Jul 31, 2024. The application was originally filed on Jun 25, 2018 under application number EP18838944A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3659994

ZHEJIANG QUHUA FLUOR CHEMISTRY
Application Number
EP18838944A
Filing Date
Jun 25, 2018
Status
Granted And Under Opposition
Jun 27, 2024
Grant Date
Jul 31, 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

MEXICHEM FLUOR DE CVApr 25, 2025POTTER CLARKSONADMISSIBLE

Patent Citations (27) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONCN102361842B
DESCRIPTIONCN103189339B
DESCRIPTIONUS6077982
INTERNATIONAL-SEARCH-REPORTCN102164881
INTERNATIONAL-SEARCH-REPORTCN106278810
INTERNATIONAL-SEARCH-REPORTCN106349005
INTERNATIONAL-SEARCH-REPORTCN107324968
INTERNATIONAL-SEARCH-REPORTUS5710352
OPPOSITIONCN101215220
OPPOSITIONCN102211974
OPPOSITIONCN106278810
OPPOSITIONCN106349005
OPPOSITIONCN1651137
OPPOSITIONEP2937326
OPPOSITIONEP3505504
OPPOSITIONWO2005108523
OPPOSITIONWO2006106353
OPPOSITIONWO2008005920
OPPOSITIONWO2009125201
OPPOSITIONWO2010026382
OPPOSITIONWO2016016625
OPPOSITIONWO2016132111
OPPOSITIONWO9416029
SEARCHCN103214342
SEARCHCN106278810
SEARCHUS9556091
SEARCHWO2008040969

Non-Patent Literature (NPL) Citations (1) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
OPPOSITION- M. Nappa , S. Peng , X. Sun, "Chapter 3: Industrial Syntheses of Hydrohaloolefins and Related Products", Modern Synthesis Processes and Reactivity of Fluorinated Compounds, US, Elsevier Inc., (20170101), pages 27 - 69, doi:10.1016/B978-0-12-803740-9.00003-2, ISBN 0128037407, XP009560808

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

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