The patent EP3790952 was granted to Unilever on Jan 26, 2022. The application was originally filed on May 8, 2019 under application number EP19723087A. The patent is currently recorded with a legal status of "Revoked".

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 | EP1627033 | 
| DESCRIPTION | US4702857 | 
| DESCRIPTION | US4861512 | 
| DESCRIPTION | US4956447 | 
| DESCRIPTION | US5574179 | 
| DESCRIPTION | US5929022 | 
| DESCRIPTION | US7723281 | 
| DESCRIPTION | WO2006024612 | 
| DESCRIPTION | WO2006055787 | 
| DESCRIPTION | WO2007079850 | 
| DESCRIPTION | WO2016005271 | 
| INTERNATIONAL-SEARCH-REPORT | EP1627033 | 
| INTERNATIONAL-SEARCH-REPORT | US5929022 | 
| INTERNATIONAL-SEARCH-REPORT | US7723281 | 
| INTERNATIONAL-SEARCH-REPORT | WO0002449 | 
| OPPOSITION | CN105567453 | 
| OPPOSITION | EP0034048 | 
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Date
Description
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Jun 17, 2024
Jun 17, 2024
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Oct 26, 2022
Feb 8, 2022
Jan 24, 2022
Jan 7, 2022
Decision to grant a European patent
Search/Exam
Dec 17, 2021
(Electronic) Receipt
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Dec 17, 2021
Filing of the translations of the claims
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Dec 17, 2021
French translation of claims
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Dec 17, 2021
German translation of the claims
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Sep 17, 2021
Sep 17, 2021
Sep 17, 2021
Intention to grant (signatures)
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Sep 17, 2021
Text intended for grant (clean copy)
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Sep 17, 2021
Aug 30, 2021
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
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Jun 24, 2021
Examination started
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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
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May 31, 2021
Cover sheet for fax transmission
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May 28, 2021
Annex
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May 28, 2021
Cover sheet for fax transmission
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May 28, 2021
Letter to the Legal Division
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Mar 31, 2021
Communication from the Legal Division
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Mar 24, 2021
Annexes in respect of a client data request
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Mar 24, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 24, 2021
Mar 23, 2021
Annexes in respect of a client data request
Search/Exam
Mar 23, 2021
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
Annexes in respect of a client data request
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Mar 23, 2021
Letter accompanying subsequently filed items
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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
Search/Exam
Mar 5, 2021
Annexes in respect of a client data request
Search/Exam
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
Search/Exam
Mar 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 5, 2021
Mar 5, 2021
Mar 5, 2021
Mar 5, 2021
Feb 17, 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
Search/Exam
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
Search/Exam
Feb 1, 2021
Annexes in respect of a client data request
Search/Exam
Feb 1, 2021
Letter accompanying subsequently filed items
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Feb 1, 2021
Jan 22, 2021
Communication to designated inventor
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Jan 22, 2021
Communication to designated inventor
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Jan 22, 2021
Communication to designated inventor
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Jan 22, 2021
Communication to designated inventor
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Jan 22, 2021
Communication to designated inventor
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Jan 19, 2021
Priority search results copy provided by EPO
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Nov 23, 2020
Nov 23, 2020
Oct 28, 2020
(Electronic) Receipt
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Oct 28, 2020
General enquiry
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Oct 28, 2020
Letter accompanying subsequently filed items
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Oct 27, 2020
(Electronic) Receipt
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Oct 27, 2020
Request for entry into the European phase
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Sep 25, 2020
Information on entry into European phase
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May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
Notification of the recording of a change
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Apr 22, 2020
Apr 9, 2020
Apr 9, 2020
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Mar 19, 2020
Mar 12, 2020
Mar 12, 2020
PCT demand form
PCT2
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Dec 9, 2019
Nov 21, 2019
Copy of the international search report
Search/Exam
Nov 21, 2019
Published international application - A1
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Sep 24, 2019
Sep 2, 2019
ISR: cited documents
PCTISA
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Jul 18, 2019
(Electronic) Receipt
PCTISA
Jul 18, 2019
Jun 24, 2019
Jun 24, 2019
May 23, 2019
May 22, 2019
May 17, 2019
May 8, 2019
(Electronic) Receipt
PCTRO
May 8, 2019
Abstract
PCTRO
May 8, 2019
Claims
PCTRO
May 8, 2019
Description
PCTRO
May 8, 2019
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May 8, 2019
May 8, 2019