The patent EP3621578 was granted to Unilever on Feb 16, 2022. The application was originally filed on May 4, 2018 under application number EP18722056A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 | 
|---|---|
| DESCRIPTION | EP20160190191 | 
| DESCRIPTION | US2002122772 | 
| DESCRIPTION | US2003083210 | 
| DESCRIPTION | US2006217283 | 
| DESCRIPTION | US2015093348 | 
| INTERNATIONAL-SEARCH-REPORT | EP1029532 | 
| INTERNATIONAL-SEARCH-REPORT | US2002070238 | 
| INTERNATIONAL-SEARCH-REPORT | US2008008672 | 
| INTERNATIONAL-SEARCH-REPORT | WO2018054743 | 
| OPPOSITION | EP2740467 | 
| OPPOSITION | JP2006104149 | 
| OPPOSITION | JP2006183039 | 
| OPPOSITION | JP2006193549 | 
| OPPOSITION | JP2010059247 | 
| OPPOSITION | WO2014029711 | 
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 | 
|---|---|
| INTERNATIONAL-SEARCH-REPORT | - Anonymous, "Physical properties of glycerine and its solutions", (19670531), URL: http://www.aciscience.org/docs/physical_properties_of_glycerine_and_its_solutions.pdf, (20170612), XP055380469 [A] 1 | 
| INTERNATIONAL-SEARCH-REPORT | - "Cleansing foam", GNPD, MINTEL, (20110201), XP002771027 [A] 1 | 
| OPPOSITION | - Anonymous, "Abschnitt 1: bezeichnung des stoffs beziehungsweise des gemischs und des unternehmens", Roth, (20170221), pages 1 - 12, XP093002329 | 
| OPPOSITION | - Anonymous, "Dipropylenglycole", Wikipedia, (20211127), pages 1 - 4, URL: https: //de.wikipedia.org/wiki/Dipropylenglycole, XP093002325 | 
| OPPOSITION | - Anonymous, "Glycerol Zur Gruppe der Polyole gehörende Verbindung. Eigenschaften Vergrößern Tabelle: Eigenschaften", Auszug aus Römpp Chemielexikon zum Stichwort Glycerin, (20190000), pages 1 - 4, URL: https://roempp.thieme.de/lexicon/RD-07-01466, XP093002309 | 
Get a free citation report including examiner, opposition, and international search citations.
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OPPO
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Jan 20, 2022
Decision to grant a European patent
Search/Exam
Jan 10, 2022
(Electronic) Receipt
Search/Exam
Jan 10, 2022
French translation of claims
Search/Exam
Jan 10, 2022
German translation of the claims
Search/Exam
Jan 10, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2021
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Intention to grant (signatures)
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Sep 29, 2021
Text intended for grant (clean copy)
Search/Exam
Sep 29, 2021
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Aug 5, 2021
Letter accompanying subsequently filed items
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Aug 5, 2021
Letter to the Legal Division
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Jun 29, 2021
Communication from the Legal Division
Search/Exam
Jun 1, 2021
Annex
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Jun 1, 2021
Annex
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Jun 1, 2021
Letter accompanying subsequently filed items
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Jun 1, 2021
Letter to the Legal Division
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May 31, 2021
Annex
Search/Exam
May 31, 2021
Cover sheet for fax transmission
Search/Exam
May 28, 2021
Annex
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May 28, 2021
Cover sheet for fax transmission
Search/Exam
May 28, 2021
Letter to the Legal Division
Search/Exam
Mar 31, 2021
Communication from the Legal Division
Search/Exam
Mar 24, 2021
Annexes in respect of a client data request
Search/Exam
Mar 24, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 24, 2021
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Annexes in respect of a client data request
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Mar 23, 2021
Annexes in respect of a client data request
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Annexes in respect of a client data request
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Mar 23, 2021
Annexes in respect of a client data request
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Mar 23, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 23, 2021
Mar 16, 2021
Annexes in respect of a client data request
Search/Exam
Mar 16, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 16, 2021
Mar 12, 2021
Communication from the Legal Division
Search/Exam
Mar 10, 2021
Mar 10, 2021
Mar 5, 2021
Annexes in respect of a client data request
Search/Exam
Mar 5, 2021
Annexes in respect of a client data request
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Mar 5, 2021
Annexes in respect of a client data request
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Mar 5, 2021
Annexes in respect of a client data request
Search/Exam
Mar 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 5, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 5, 2021
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Mar 4, 2021
(Electronic) Receipt
Search/Exam
Mar 4, 2021
Amended claims with annotations
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Mar 4, 2021
Amended description with annotations
Search/Exam
Mar 4, 2021
Claims
Search/Exam
Mar 4, 2021
Description
Search/Exam
Mar 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 4, 2021
Feb 1, 2021
Annexes in respect of a client data request
Search/Exam
Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2021
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Annex to the communication
Search/Exam
Nov 12, 2020
Communication from the Examining Division
Search/Exam
Nov 2, 2020
Examination started
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Jun 24, 2020
(Electronic) Receipt
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Jun 24, 2020
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Amended claims with annotations
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Jun 24, 2020
Amendments received before examination
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Jun 24, 2020
Letter accompanying subsequently filed items
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Feb 19, 2020
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Communication to designated inventor
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Dec 13, 2019
Communication to designated inventor
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Dec 13, 2019
Communication to designated inventor
Search/Exam
Dec 10, 2019
Priority search results copy provided by EPO
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Nov 19, 2019
Nov 19, 2019
Nov 5, 2019
(Electronic) Receipt
Search/Exam
Nov 5, 2019
Nov 5, 2019
Request for entry into the European phase
Search/Exam
Sep 20, 2019
Information on entry into European phase
Search/Exam
Apr 10, 2019
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Notification of election of EPO
Search/Exam
Mar 8, 2019
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PCT demand form
PCT2
Mar 4, 2019
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Dec 6, 2018
Nov 15, 2018
Copy of the international search report
Search/Exam
Nov 15, 2018
Published international application - A1
Search/Exam
Oct 16, 2018
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ISR: cited documents
PCTISA
Jul 30, 2018
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(Electronic) Receipt
PCTRO
May 4, 2018
Abstract
PCTRO
May 4, 2018
Claims
PCTRO
May 4, 2018
Description
PCTRO
May 4, 2018
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Drawings
PCTRO
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