IP Verse

Water-Absorbable Resin Powder, And Method For Determining Elastic Modulus Of Water-Absorbable Resin Powder - EP3202823

The patent EP3202823 was granted to Nippon Shokubai on Apr 7, 2021. The application was originally filed on Sep 29, 2015 under application number EP15845662A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3202823

NIPPON SHOKUBAI
Application Number
EP15845662A
Filing Date
Sep 29, 2015
Status
Granted And Under Opposition
Mar 5, 2021
Grant Date
Apr 7, 2021
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

EVONIK SUPERABSORBERJan 7, 2022GODEMEYER BLUM LENZE PATENTANWALTE PARTNERSCHAFT MBB WERKPATENTADMISSIBLE

Patent Citations (13) New

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

Citation PhasePublication NumberPublication Link
INTERNATIONAL-SEARCH-REPORTJP2004517173
INTERNATIONAL-SEARCH-REPORTJPH05508425
INTERNATIONAL-SEARCH-REPORTWO2011126079
INTERNATIONAL-SEARCH-REPORTWO2013002387
INTERNATIONAL-SEARCH-REPORTWO2014038324
INTERNATIONAL-SEARCH-REPORTWO2014041969
INTERNATIONAL-SEARCH-REPORTWO2015030129
INTERNATIONAL-SEARCH-REPORTWO2015030130
OPPOSITIONEP1641883
OPPOSITIONUS2009281232
OPPOSITIONUS6143821
OPPOSITIONWO2006101271
SEARCHUS7638570

Non-Patent Literature (NPL) Citations (2) 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- "Chapter 5: The Structure and Properties of Superabsorbent Polyacrylates", Buchholz F L, Graham, A., Modern Superabsorbent Polymer Technology, Wiley-VCH, (19980101), pages 167 - 221, XP055881661-
OPPOSITION- Markus Frank, "Superabsorbents", Ullmann's Encyclopedia of Industrial Chemistry, (20120101), vol. 35, pages 213 - 232, XP055500632-

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