IP Verse

Polysulfone Copolymer With Excellent Heat Resistance And Chemical Resistance, And Method For Preparing Same - EP3170855

The patent EP3170855 was granted to Samyang on Jun 9, 2021. The application was originally filed on Aug 24, 2015 under application number EP15835779A. The patent is currently recorded with a legal status of "Revoked".

EP3170855

SAMYANG
Application Number
EP15835779A
Filing Date
Aug 24, 2015
Status
Revoked
Mar 10, 2023
Grant Date
Jun 9, 2021
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

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

SOLVAY SPECIALTY POLYMERS USAMar 9, 2022FERRIADMISSIBLE
BASFMar 8, 2022BAIERADMISSIBLE

Patent Citations (8) New

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

Citation PhasePublication NumberPublication Link
INTERNATIONAL-SEARCH-REPORTJP2011127108
INTERNATIONAL-SEARCH-REPORTJP2012166503
INTERNATIONAL-SEARCH-REPORTJP2014040517
INTERNATIONAL-SEARCH-REPORTKR19990072675
INTERNATIONAL-SEARCH-REPORTKR20140100301
OPPOSITIONUS2014186624
OPPOSITIONWO2014072473
SEARCHWO2014072473

Non-Patent Literature (NPL) Citations (15) 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- Basf Ag, "Ultrason A versatile material for the production of tailor-made membranes", Brochure, (20130701), page 12pp, XP055479310-
OPPOSITION- Basf, "Ultrason® E and S - Polyethersulfone and Polysulfone for membranes", (19980701), pages 1 - 2, XP055902160-
OPPOSITION- Basf, "Ultrason® E, S, P (PESU, PSU, PPSU) - Sortimentsübersicht", (20100901), pages 1 - 12, XP055902163-
OPPOSITION- Basf, "Ultrason® (PESU, PSU, PPSU) - Verhalten gegenüber Chemikalien", BASF, (20101201), pages 1 - 20, XP055902165-
OPPOSITION- Jamal El-Hibri M, Et Al, "Poly(aryl ether sulfone)s", Handbook of Thermoplastics, (19970101), pages 893 - 900, XP055904483-
OPPOSITION- H. R. KRICHELDORF et al., "New polymer syntheses. LXXXII. Syntheses of poly(ether-sulfone)s from silylated aliphatic diols including chiral monomers", Journal of Polymer Science, Part A: Polymer Chemistry, (19951115), vol. 33, no. 15, doi:10.1002/pola.1995.080331513, pages 2667 - 2671, XP055053356
OPPOSITION- KRICHELDORF H. R. et al., "New Polymer Syntheses. LXXXII. Syntheses of Poly(ether-sulfone)s from Silylated Aliphatic Diols Including Chiral Monomers", Journal of Polymer Science, (19950000), vol. 33, doi:10.1002/pola.1995.080331513, pages 2667 - 2671, XP055053356
OPPOSITION- MAJDOUB M. et al., "Nouveaux polyethers et polyesters à base d'isosorbide: synthese et caracterisation", European Polymer Journal, (19940000), vol. 30, no. 12, doi:10.1016/0014-3057(94)90274-7, pages 1431 - 1437, XP024053303
OPPOSITION- FENOUILLOT F. et al., "Polymers from renewable 1,4:3,6-dianhydrohexitols (isosorbide, isomannide and isoidide): A review", Progress in Polymer Science, (20100000), vol. 35, doi:10.1016/j.progpolymsci.2009.10.001, pages 578 - 622, XP026983357
OPPOSITION- Chaouki Belgacem, Raouf Medimagh, Aurélie Fildier, Audrey Bulete, Hans Kricheldorf, Hatem Ben Romdhane, Saber Chatti, "Synthesis and characterization of isosorbide-based alpha,omega-dihydroxyethersulfone oligomers", New polymeric materials, NL , (20150102), vol. 18, no. 1, doi:10.1080/15685551.2014.947554, ISSN 0169-6424, pages 64 - 72, XP055344342
OPPOSITION- CHATTI S. et al., "Poly(ether sulfone) of Isosorbide, Isomannide and Isoidide", High Performance Polymers, (20090000), vol. 21, doi:10.1177/0954008308088296, pages 105 - 118, XP008151327
OPPOSITION- S. CHATTI et al., "Poly(ether sulfone) of isosorbide, isomannide and isoidide", High Performance Polymers, (20090228), vol. 21, no. 1, doi:10.1177/0954008308088296, pages 105 - 118, XP008151327
SEARCH- HANS R. KRICHELDORF ET AL, "New polymer syntheses. LXXXII. Syntheses of poly(ether-sulfone)s from silylated aliphatic diols including chiral monomers", JOURNAL OF POLYMER SCIENCE PART A: POLYMER CHEMISTRY, (19951115), vol. 33, no. 15, doi:10.1002/pola.1995.080331513, ISSN 0887-624X, pages 2667 - 2671, XP055053356 [X] 1-11 * page 2667 - page 2671 *
SEARCH- FENOUILLOT F ET AL, "Polymers from renewable 1,4:3,6-dianhydrohexitols (isosorbide, isomannide and isoidide): A review", PROGRESS IN POLYMER SCIENCE, PERGAMON PRESS, OXFORD, GB, vol. 35, no. 5, ISSN 0079-6700, (20100501), pages 578 - 622, (20091030), XP026983357 [Y] 1-11 * page 578 - page 622 *
SEARCH- SABER CHATTI ET AL, "Poly(ether sulfone) of Isosorbide, Isomannide and Isoidide", HIGH PERFORMANCE POLYMERS, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL, GB, (20090201), vol. 21, no. 1, doi:10.1177/0954008308088296, ISSN 0954-0083, pages 105 - 118, XP008151327 [X] 1-11 * page 105 - page 118 *

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