IP Verse

Formation Of Higher Molecular Weight Cyclic Polyamine Compounds From Cyclic Polyamine Compounds - EP2797901

The patent EP2797901 was granted to DOW on May 10, 2017. The application was originally filed on Nov 14, 2012 under application number EP12795677A. The patent is currently recorded with a legal status of "Revoked".

EP2797901

DOW
Application Number
EP12795677A
Filing Date
Nov 14, 2012
Status
Revoked
Oct 5, 2018
Grant Date
May 10, 2017
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

AKZO NOBELFeb 9, 2018AKZO NOBEL CHEMICALS GROUPADMISSIBLE

Patent Citations (26) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONEP1249440
DESCRIPTIONGB1508460
DESCRIPTIONGB1551127
DESCRIPTIONUS2005095189
DESCRIPTIONUS2008132725
DESCRIPTIONUS2010137642
DESCRIPTIONUS4568746
DESCRIPTIONUS5851948
DESCRIPTIONUS6465601
DESCRIPTIONUS6534441
DESCRIPTIONUS7053247
DESCRIPTIONWO2006060206
INTERNATIONAL-SEARCH-REPORTEP0412611
INTERNATIONAL-SEARCH-REPORTEP0737669
INTERNATIONAL-SEARCH-REPORTUS2010087683
INTERNATIONAL-SEARCH-REPORTUS2010094007
INTERNATIONAL-SEARCH-REPORTUS4973692
INTERNATIONAL-SEARCH-REPORTUS4977266
INTERNATIONAL-SEARCH-REPORTUS5196588
INTERNATIONAL-SEARCH-REPORTUS5256786
INTERNATIONAL-SEARCH-REPORTUS5410086
INTERNATIONAL-SEARCH-REPORTWO2010042157
OPPOSITIONWO2010042158
OPPOSITIONWO2010042160
OPPOSITIONWO2010042161
OPPOSITIONWO2010042165

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
DESCRIPTION- KOMIYAMA ET AL., "Concentration Profiles in Impregnation of Porous Catalysts: Nickel on Alumina", J. OF CATALYSIS, (1980), vol. 63, pages 35 - 52-
INTERNATIONAL-SEARCH-REPORT- C. BAZZICALUPI ET AL, "Reinforced piperazine rings containing polyamines: metal complex equilibria and structural studies", INORGANICA CHIMICA ACTA, (1998), vol. 268, no. 1, doi:10.1016/S0020-1693(97)05720-4, ISSN 0020-1693, pages 63 - 68, XP055054759 [X] 1,3,6 * compounds L1,L2 *
INTERNATIONAL-SEARCH-REPORT- MARCHAND ALAN P ET AL, "Synthesis and electrospray ionization mass spectrometric evaluation of the metal cation complexation behavior of cage-annulated azacrown ethers", HETEROCYCLES.INTERNATIONAL JOURNAL FOR REVIEWS AND COMMUNICATIONS IN HETEROCYCLIC CHEMISTRY, ELSEVIER SCIENCE PUBLISHERS B.V. AMSTERDAM, NL, (2004), vol. 62, ISSN 0385-5414, pages 279 - 296, XP001526098 [X] 1 * compound 25 *

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