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The patent EP3773456 was granted to Unilever on Aug 28, 2024. The application was filed on May 8, 2019 under application number EP19721327A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| KAO GERMANY | May 27, 2025 | - | ADMISSIBLE |
| DALLI WERKE | May 12, 2025 | F & E PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2012157365 |
| DESCRIPTION | US2016095804 |
| DESCRIPTION | US2017079899 |
| DESCRIPTION | US2017095410 |
| DESCRIPTION | US2017319453 |
| DESCRIPTION | US2017340540 |
| DESCRIPTION | US2017360688 |
| DESCRIPTION | US5811087 |
| DESCRIPTION | WO2018002557 |
| INTERNATIONAL-SEARCH-REPORT | FR3021531 |
| INTERNATIONAL-SEARCH-REPORT | US2017319453 |
| INTERNATIONAL-SEARCH-REPORT | US2017340540 |
| INTERNATIONAL-SEARCH-REPORT | US2017360688 |
| INTERNATIONAL-SEARCH-REPORT | US2018071198 |
| INTERNATIONAL-SEARCH-REPORT | US5811087 |
| INTERNATIONAL-SEARCH-REPORT | US5840670 |
| INTERNATIONAL-SEARCH-REPORT | US6258763 |
| OPPOSITION | CN107898654 |
| OPPOSITION | US2017319453 |
| OPPOSITION | US2017340540 |
| OPPOSITION | WO2011049932 |
| OPPOSITION | WO2019215201 |
| OPPOSITION | WO2019215254 |
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
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Sep 10, 2024
Aug 1, 2024
Decision to grant a European patent
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Jul 18, 2024
(Electronic) Receipt
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Jul 18, 2024
Filing of the translations of the claims
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Jul 18, 2024
French translation of claims
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Jul 18, 2024
German translation of the claims
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Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Intention to grant (signatures)
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Jun 11, 2024
Text intended for grant (clean copy)
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Jun 11, 2024
May 25, 2023
Jan 9, 2023
Document concerning representation
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Jan 9, 2023
General authorisation
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Jan 9, 2023
Letter accompanying subsequently filed items
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Jun 21, 2022
(Electronic) Receipt
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Jun 21, 2022
Amended claims with annotations
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Jun 21, 2022
Amended description with annotations
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Jun 21, 2022
Claims
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Jun 21, 2022
Description
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Jun 21, 2022
Letter accompanying subsequently filed items
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Jun 21, 2022
Feb 24, 2022
Annex to the communication
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Feb 24, 2022
Communication from the Examining Division
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Feb 17, 2022
Examination started
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Jan 24, 2022
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 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
(Electronic) Receipt
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May 28, 2021
May 28, 2021
Amended claims with annotations
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May 28, 2021
Amendments received before examination
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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 accompanying subsequently filed items
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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
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Mar 24, 2021
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
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
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Mar 16, 2021
Letter accompanying subsequently filed items
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Mar 16, 2021
Mar 12, 2021
Communication from the Legal Division
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Mar 10, 2021
Mar 10, 2021
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
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Mar 5, 2021
Annexes in respect of a client data request
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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
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Mar 5, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
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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
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
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Feb 1, 2021
Jan 20, 2021
Dec 14, 2020
Communication to designated inventor
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Dec 14, 2020
Communication to designated inventor
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Dec 14, 2020
Communication to designated inventor
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Dec 14, 2020
Communication to designated inventor
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Dec 14, 2020
Communication to designated inventor
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Dec 8, 2020
Priority search results copy provided by EPO
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Nov 30, 2020
Nov 13, 2020
Nov 5, 2020
(Electronic) Receipt
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Nov 5, 2020
Request for entry into the European phase
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Oct 15, 2020
Oct 15, 2020
Notification of the recording of a change
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Sep 18, 2020
Information on entry into European phase
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Dec 3, 2019
Nov 14, 2019
Copy of the international search report
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Nov 14, 2019
Published international application - A1
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Aug 7, 2019
Jul 1, 2019
May 15, 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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