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Method For Working Up Alkaline Polyether Polyols - EP3083757

The patent EP3083757 was granted to Covestro on Aug 23, 2023. The application was originally filed on Dec 16, 2014 under application number EP14812257A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3083757

COVESTRO
Application Number
EP14812257A
Filing Date
Dec 16, 2014
Status
Patent Maintained As Amended
Jul 21, 2023
Grant Date
Aug 23, 2023
External Links
Slate, Register, Google Patents

Patent Summary

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REPSOLJun 15, 2021ABG LAW -

Patent Citations (21) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONDE10250429
DESCRIPTIONEP0700949
DESCRIPTIONEP0743093
DESCRIPTIONEP0761708
DESCRIPTIONEP1292631
DESCRIPTIONEP1517941
DESCRIPTIONEP1525244
DESCRIPTIONGB1108013
DESCRIPTIONUS4507475
DESCRIPTIONUS4647595
DESCRIPTIONUS5470813
DESCRIPTIONWO0047649
DESCRIPTIONWO2010145899
DESCRIPTIONWO9740086
DESCRIPTIONWO9816310
DESCRIPTIONWO9947582
INTERNATIONAL-SEARCH-REPORTWO0188015
INTERNATIONAL-SEARCH-REPORTWO9947582
OPPOSITIONEP0916686
OPPOSITIONUS4430490
OPPOSITIONWO2010145899

Non-Patent Literature (NPL) Citations (3) 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- Anonymous, "Experiment 23", NEUTRALIZATION REACTION, URL: https://www.me.stier.org/ Downloads/Lab23-Neutralization.pdf-
OPPOSITION- Don Wang, "02.0 Acid and Base Neutralization", Environmental Health & Safety, URL: https://extranet.fredhutch.org/en/u/ehs/hamm/chap6/section2.html-
OPPOSITION- DE LUCAS, ANTONIO et al., "An Improved Method for the Purification of Polyether- Polyols Using Phosphoric Acid as Neutralization Agent", Organic Process Research & Development, (19990500), vol. 3, no. 3, pages 166 - 171, XP055818710

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Dossier Documents

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