The patent EP3301138 was granted to DAW on Feb 16, 2022. The application was originally filed on Sep 30, 2016 under application number EP16191982A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN102533028 |
| OPPOSITION | CN105419507 |
| OPPOSITION | CN105694550 |
| OPPOSITION | EP0808883 |
| OPPOSITION | EP2589579 |
| OPPOSITION | EP2754699 |
| OPPOSITION | EP2871169 |
| OPPOSITION | EP3031868 |
| OPPOSITION | EP3296361 |
| OPPOSITION | RU2366677 |
| OPPOSITION | US2009004468 |
| OPPOSITION | US2011207851 |
| OPPOSITION | US2013296461 |
| OPPOSITION | US2015267077 |
| OPPOSITION | WO0073237 |
| OPPOSITION | WO02085589 |
| OPPOSITION | WO2004026918 |
| OPPOSITION | WO2006053640 |
| OPPOSITION | WO2009105443 |
| OPPOSITION | WO2015177558 |
| OPPOSITION | WO9617896 |
| SEARCH | EP2589579 |
| SEARCH | EP2754699 |
| SEARCH | EP2871169 |
| SEARCH | EP3031868 |
| SEARCH | WO2010026138 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| OPPOSITION | - Alberdingk UC 84 Rheovis PU 1214, Kronos 2190, Aquaflow NHS-300, Acrysol RM-SW, Viscalex HV30, Disparlon AQ-320 Tafigel PUR 62, Tafigel PUR 40, Aerosil A-300, SDS Nuosphere, Tylose H 10000 P2 und AlberdingkUSA UC 84. |
| OPPOSITION | - Anonymus, "ACRYSOL™ RM-825 Rheology Modifier", (19961101), XP055683772 |
| OPPOSITION | - Anonymus, "Data Sheet BYK-345, BYK 346 and BYK-348 TDS", BYK Chemie, (19980601), XP055683675 |
| OPPOSITION | - Anonymus, "Data Sheet BYK-347", BYK Chemie, (20000201), XP055683775 |
| OPPOSITION | - Anonymus, "Product data sheet NeoCryl A-639", DSM NeoResins, (20050701), XP055683686 |
| OPPOSITION | - Anonymus, "Product Data Troysol MS2", TROY Corporation, (20160101), XP055683690 |
| OPPOSITION | - Anonymus, "Product Information Alberdingk PUR-MATT 970 VP", Alberdingk Boley, (20150310), XP055683782 |
| OPPOSITION | - Anonymus, "Surfactant", Wikipedia, (20200129), XP055683688 |
| OPPOSITION | - Anonymus, "Triton X-405 TDS (70%) Surfactant product information", DOW, (20090101), XP055683683 |
| OPPOSITION | - for Decorative Coatings, 2001, p.81-84; BASF, Formulation Additives by BASF, "Little helpers love great achievements - Practical Guide to Rheology Modifiers"; Römpp Chemie Lexikon "Bindemittel" und "Verdickungsmittel"; |
| OPPOSITION | - M. Bock, "Polyurethanes for Coatings", European Coatings Literature, (20010101), page 74 |
| OPPOSITION | - M. Bock, "Polyurethanes for Coatings", European Coatings Literature, (20010101), page 74, XP055683778 |
| OPPOSITION | - Wikipedia: "Surfactant”, Technical Data Sheets für BYK-345 BYK-346,.BYK-348, BYK-O22, BYK-024, Triton X-405, NeoCryl A639, Troysol MS2, Alberdingk Boley APU 1061, Rheolate 278, Acematt TS 100, BYK-7420 ES, Optiflow T1000 |
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Refund of fees
Search/Exam
Dec 13, 2021
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(Electronic) Receipt
Appeal
Dec 7, 2021
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Withdrawal of an appeal
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
Sep 7, 2021
(Electronic) Receipt
Appeal
Sep 7, 2021
Advice of delivery
Appeal
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May 20, 2019
Apr 11, 2019
Decision to grant a European patent
Search/Exam
Mar 28, 2019
(Electronic) Receipt
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Mar 28, 2019
English translation of the claims
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Mar 28, 2019
Filing of the translations of the claims
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Mar 28, 2019
French translation of claims
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Mar 28, 2019
Letter accompanying subsequently filed items
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Dec 4, 2018
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Intention to grant (signatures)
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Dec 4, 2018
Text intended for grant (clean copy)
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Dec 4, 2018
Oct 23, 2018
Examination started
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Jun 21, 2018
(Electronic) Receipt
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Jun 21, 2018
Jun 21, 2018
Amended claims with annotations
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Jun 21, 2018
Amendments received before examination
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Jun 21, 2018
Letter accompanying subsequently filed items
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Apr 9, 2018
Mar 7, 2018
Notification of forthcoming publication
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Jan 29, 2018
Communication to designated inventor
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Communication to designated inventor
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Jan 29, 2018
Communication to designated inventor
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Jan 18, 2018
(Electronic) Receipt
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Jan 18, 2018
Designation of inventor
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Jan 18, 2018
Letter accompanying subsequently filed items
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Oct 4, 2017
(Electronic) Receipt
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Oct 4, 2017
Letter accompanying subsequently filed items
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May 11, 2017
Submission concerning representation
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Feb 28, 2017
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European search opinion
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Feb 28, 2017
European search report
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Feb 28, 2017
Information on Search Strategy
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Feb 20, 2017
Search started
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Nov 14, 2016
Deficiency in designation of inventor
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Sep 30, 2016
Abstract
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Sep 30, 2016
Sep 30, 2016
Claims
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Sep 30, 2016
Description
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Sep 30, 2016
Request for grant of a European patent
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