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Viscoelastic And Reticulated Polyurethane Foam And The Preparation Thereof - EP3307828

The patent EP3307828 was granted to Covestro Deutschland on Mar 18, 2020. The application was originally filed on Jun 8, 2016 under application number EP16727522A. The patent is currently recorded with a legal status of "Revoked".

EP3307828

COVESTRO DEUTSCHLAND
Application Number
EP16727522A
Filing Date
Jun 8, 2016
Status
Revoked
Nov 18, 2022
Publication Date
Mar 18, 2020
External Links
Slate, Register, Google Patents

Patent Summary

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Patent Family

Patent Oppositions (2)

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CompanyOpposition DateRepresentativeOpposition Status

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BASFDec 17, 2020BASF ASSOCIATION -
HUNTSMANDec 17, 2020VAN DEN BROECK -

Patent Citations (17) New

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

Citation PhasePublication Number
DESCRIPTIONCN104059244
INTERNATIONAL-SEARCH-REPORTUS2013178548
INTERNATIONAL-SEARCH-REPORTUS2013178550
INTERNATIONAL-SEARCH-REPORTUS2013225706
INTERNATIONAL-SEARCH-REPORTUS2013289150
OPPOSITIONCA2857609
OPPOSITIONUS2013178550
OPPOSITIONUS4259452
OPPOSITIONUS6638986
OPPOSITIONWO02088211
OPPOSITIONWO03046041
OPPOSITIONWO2007065837
OPPOSITIONWO2010009205
OPPOSITIONWO2010009256
OPPOSITIONWO2011163113
OPPOSITIONWO2012044414
OPPOSITIONWO2013079461

Non-Patent Literature (NPL) Citations (4) New

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

Citation PhaseReference Text
DESCRIPTION- "Methoden der Organischen Chemie", HOUBEN WEYL, Makromolekulare Stoffe, GEORG THIEME VERLAG, (1963), vol. XIV/2, page 17
OPPOSITION- Anonymous, "Product description DABCO ® DC198 Surfactant ", Air Products, (20000101), Air Products, (20221024), XP055974236
OPPOSITION- Anonymous, "Product Description TEGOSTAB BF 2370", EVONIK, (20030501), EVONIK, (20221024), XP055974246
OPPOSITION- Oertel Gunther, "Polyurethane", KUNSTSTOFFHANDBUCH, (19930101), XP055974231

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Dossier Documents

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