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The patent EP3484568 was granted to Perfuze on Jul 16, 2025. The application was filed on Jul 11, 2017 under application number EP17758944A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| VALET PATENT SERVICES | Jan 27, 2023 | KAZI | ADMISSIBLE |
| VALET PATENT SERVICES | Jan 27, 2023 | VALET PATENT SERVICES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2002065551 |
| DESCRIPTION | US2013184810 |
| DESCRIPTION | US2013190856 |
| EXAMINATION | US2004243102 |
| INTERNATIONAL-SEARCH-REPORT | EP1270031 |
| INTERNATIONAL-SEARCH-REPORT | US2009236770 |
| INTERNATIONAL-SEARCH-REPORT | US6824553 |
| OPPOSITION | EP1270031 |
| OPPOSITION | US2004243102 |
| OPPOSITION | US2007088323 |
| OPPOSITION | US2015025562 |
| OPPOSITION | US2015320971 |
| OPPOSITION | US5662622 |
| OPPOSITION | US5800522 |
| OPPOSITION | US5938587 |
| OPPOSITION | US6464632 |
| OPPOSITION | US6824553 |
| OPPOSITION | US7914466 |
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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Jun 20, 2025
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Authorisation
OPPO
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Authorisation
OPPO
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May 11, 2022
Mar 31, 2022
Decision to grant a European patent
Search/Exam
Mar 22, 2022
Change to the inventor details
Search/Exam
Mar 16, 2022
(Electronic) Receipt
Search/Exam
Mar 16, 2022
Filing of the translations of the claims
Search/Exam
Mar 16, 2022
French translation of claims
Search/Exam
Mar 16, 2022
German translation of the claims
Search/Exam
Mar 16, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2021
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Intention to grant (signatures)
Search/Exam
Nov 18, 2021
Text intended for grant (clean copy)
Search/Exam
Nov 18, 2021
Nov 15, 2021
Nov 11, 2021
Communication from the Legal Division
Search/Exam
Jan 27, 2021
(Electronic) Receipt
Search/Exam
Jan 27, 2021
Amended claims with annotations
Search/Exam
Jan 27, 2021
Amended description with annotations
Search/Exam
Jan 27, 2021
Claims
Search/Exam
Jan 27, 2021
Description
Search/Exam
Jan 27, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 27, 2021
Nov 10, 2020
Annexes in respect of a client data request
Search/Exam
Nov 10, 2020
Document concerning representation
Search/Exam
Sep 29, 2020
Annex to the communication
Search/Exam
Sep 29, 2020
Communication from the Examining Division
Search/Exam
Sep 17, 2020
Examination started
Search/Exam
Jan 7, 2020
Document concerning representation
Search/Exam
Sep 20, 2019
Aug 14, 2019
Annexes in respect of a client data request
Search/Exam
Aug 14, 2019
Aug 12, 2019
(Electronic) Receipt
Search/Exam
Aug 12, 2019
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Amended claims with annotations
Search/Exam
Aug 12, 2019
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Amended description with annotations
Search/Exam
Aug 12, 2019
Amendments received before examination
Search/Exam
Aug 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2019
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Apr 23, 2019
Communication to designated inventor
Search/Exam
Apr 12, 2019
(Electronic) Receipt
Search/Exam
Apr 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2019
Letter concerning the inventor
Search/Exam
Mar 13, 2019
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Letter which had not been notified
Search/Exam
Mar 8, 2019
Letter which had not been notified
Search/Exam
Mar 8, 2019
Letter which had not been notified
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Feb 18, 2019
Communication to designated inventor
Search/Exam
Jan 31, 2019
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(Electronic) Receipt
Search/Exam
Jan 29, 2019
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Request for entry into the European phase
Search/Exam
Jan 4, 2019
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Notification of the recording of a change
Search/Exam
Jan 4, 2019
Notification of the recording of a change
Search/Exam
Jan 4, 2019
Notification of the recording of a change
Search/Exam
Nov 23, 2018
Information on entry into European phase
Search/Exam
Mar 15, 2018
Copy of the international search report
Search/Exam
Mar 15, 2018
Feb 5, 2018
Jan 26, 2018
ISR: cited documents
PCTISA
Jan 25, 2018
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Published international application - A2
Search/Exam
Dec 5, 2017
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Abstract
PCTISA
Aug 30, 2017
Claims
PCTISA
Aug 30, 2017
Aug 30, 2017
Description
PCTISA
Aug 30, 2017
Drawings
PCTISA
Aug 30, 2017
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