The weekly litigation news digest is live. Subscribe now
The patent EP3990603 was granted to Unilever on Dec 7, 2022. The application was originally filed on Jun 12, 2020 under application number EP20731872A. 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 | EP0218272 |
| DESCRIPTION | EP0258068 |
| DESCRIPTION | EP0260105 |
| DESCRIPTION | EP0305216 |
| DESCRIPTION | EP0331376 |
| DESCRIPTION | EP0407225 |
| DESCRIPTION | GB1296839 |
| DESCRIPTION | GB1372034 |
| DESCRIPTION | JPS6477492 |
| DESCRIPTION | US4435307 |
| DESCRIPTION | US4760025 |
| DESCRIPTION | US5648263 |
| DESCRIPTION | US5679630 |
| DESCRIPTION | US5691178 |
| DESCRIPTION | US5776757 |
| DESCRIPTION | US6312936 |
| DESCRIPTION | US7262042 |
| DESCRIPTION | WO0060060 |
| DESCRIPTION | WO0060063 |
| DESCRIPTION | WO0116285 |
| DESCRIPTION | WO0216547 |
| DESCRIPTION | WO0226024 |
| DESCRIPTION | WO2005003274 |
| DESCRIPTION | WO2005040372 |
| DESCRIPTION | WO2005052146 |
| DESCRIPTION | WO2005052161 |
| DESCRIPTION | WO2006027086 |
| DESCRIPTION | WO2006032327 |
| DESCRIPTION | WO2006032397 |
| DESCRIPTION | WO2006045275 |
| DESCRIPTION | WO2007147866 |
| DESCRIPTION | WO2008017570 |
| DESCRIPTION | WO2008087497 |
| DESCRIPTION | WO2008141880 |
| DESCRIPTION | WO2009021867 |
| DESCRIPTION | WO2009087524 |
| DESCRIPTION | WO2009090576 |
| DESCRIPTION | WO2009107091 |
| DESCRIPTION | WO2009111258 |
| DESCRIPTION | WO2009132870 |
| DESCRIPTION | WO2009141173 |
| DESCRIPTION | WO2009148983 |
| DESCRIPTION | WO2010099997 |
| DESCRIPTION | WO2010102861 |
| DESCRIPTION | WO2010148624 |
| DESCRIPTION | WO2010151906 |
| DESCRIPTION | WO2011011799 |
| DESCRIPTION | WO2011047987 |
| DESCRIPTION | WO2012054058 |
| DESCRIPTION | WO2012054820 |
| DESCRIPTION | WO2012119859 |
| DESCRIPTION | WO2013142495 |
| DESCRIPTION | WO2013151970 |
| DESCRIPTION | WO2014029479 |
| DESCRIPTION | WO2016005338 |
| DESCRIPTION | WO2018085311 |
| DESCRIPTION | WO2019007636 |
| DESCRIPTION | WO2019008036 |
| DESCRIPTION | WO2019075149 |
| DESCRIPTION | WO8906270 |
| DESCRIPTION | WO8906279 |
| DESCRIPTION | WO8909259 |
| DESCRIPTION | WO9116422 |
| DESCRIPTION | WO9205249 |
| DESCRIPTION | WO9217517 |
| DESCRIPTION | WO9219708 |
| DESCRIPTION | WO9219709 |
| DESCRIPTION | WO9318140 |
| DESCRIPTION | WO9324618 |
| DESCRIPTION | WO9401541 |
| DESCRIPTION | WO9425578 |
| DESCRIPTION | WO9425583 |
| DESCRIPTION | WO9506720 |
| DESCRIPTION | WO9510602 |
| DESCRIPTION | WO9514783 |
| DESCRIPTION | WO9522615 |
| DESCRIPTION | WO9526397 |
| DESCRIPTION | WO9530744 |
| DESCRIPTION | WO9535381 |
| DESCRIPTION | WO9600292 |
| DESCRIPTION | WO9612012 |
| DESCRIPTION | WO9613580 |
| DESCRIPTION | WO9627002 |
| DESCRIPTION | WO9629397 |
| DESCRIPTION | WO9704079 |
| DESCRIPTION | WO9707202 |
| DESCRIPTION | WO9812307 |
| DESCRIPTION | WO9815257 |
| INTERNATIONAL-SEARCH-REPORT | DE4443644 |
| INTERNATIONAL-SEARCH-REPORT | EP3241887 |
| INTERNATIONAL-SEARCH-REPORT | US2012252712 |
| INTERNATIONAL-SEARCH-REPORT | US3844951 |
| INTERNATIONAL-SEARCH-REPORT | WO2016008765 |
| OPPOSITION | US4153570 |
| OPPOSITION | WO9701143 |
| OPPOSITION | WO9711143 |
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
Feb 26, 2025
Feb 26, 2025
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Means of redress
Search/Exam
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Oct 29, 2024
Aug 30, 2024
Aug 27, 2024
Aug 27, 2024
Aug 27, 2024
Aug 27, 2024
Aug 27, 2024
Aug 27, 2024
Aug 27, 2024
Jul 4, 2024
Jul 1, 2024
Jul 1, 2024
Jul 1, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Jan 25, 2024
Jan 19, 2024
Jan 19, 2024
Jan 19, 2024
Sep 21, 2023
Sep 21, 2023
Sep 7, 2023
Sep 4, 2023
Sep 4, 2023
Sep 4, 2023
Sep 4, 2023
Sep 4, 2023
Sep 4, 2023
Sep 4, 2023
Dec 20, 2022
Nov 10, 2022
Decision to grant a European patent
Search/Exam
Nov 2, 2022
(Electronic) Receipt
Search/Exam
Nov 2, 2022
French translation of claims
Search/Exam
Nov 2, 2022
German translation of the claims
Search/Exam
Nov 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 4, 2022
Aug 4, 2022
Aug 4, 2022
Intention to grant (signatures)
Search/Exam
Aug 4, 2022
Text intended for grant (clean copy)
Search/Exam
Aug 4, 2022
Jul 4, 2022
Examination started
Search/Exam
Apr 6, 2022
Jan 28, 2022
Priority search results copy provided by EPO
Search/Exam
Jan 10, 2022
Dec 11, 2021
Notification of the recording of a change
Search/Exam
Dec 11, 2021
Notification of the recording of a change
Search/Exam
Nov 24, 2021
Information regarding early processing
Search/Exam
Nov 16, 2021
(Electronic) Receipt
Search/Exam
Nov 16, 2021
Request for entry into the European phase
Search/Exam
Nov 5, 2021
Information on entry into European phase
Search/Exam
Jan 21, 2021
Jan 21, 2021
Jan 21, 2021
Notification of the recording of a change
Search/Exam
Jan 21, 2021
Notification of the recording of a change
Search/Exam
Jan 18, 2021
Dec 30, 2020
Copy of the international search report
Search/Exam
Dec 30, 2020
Published international application - A1
Search/Exam
Oct 19, 2020
Sep 15, 2020
Aug 19, 2020
ISR: cited documents
PCTISA
Aug 19, 2020
Aug 19, 2020
Aug 19, 2020
Jun 23, 2020
Jun 22, 2020
Jun 17, 2020
Jun 12, 2020
(Electronic) Receipt
PCTRO
Jun 12, 2020
Abstract
PCTRO
Jun 12, 2020
Claims
PCTRO
Jun 12, 2020
Description
PCTRO
Jun 12, 2020
Jun 12, 2020
Jun 12, 2020