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The patent EP3742950 was granted to Cleanpro on Jul 16, 2025. The application was filed on Jan 28, 2019 under application number EP19707504A. 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 |
|---|---|---|---|
| NUMATIC | Oct 5, 2022 | CLEVELAND SCOTT YORK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2675246 |
| INTERNATIONAL-SEARCH-REPORT | US4393537 |
| INTERNATIONAL-SEARCH-REPORT | US5177828 |
| OPPOSITION | DE1144444 |
| OPPOSITION | US2015113757 |
| OPPOSITION | US2675246 |
| OPPOSITION | US2693002 |
| OPPOSITION | US3654662 |
| OPPOSITION | US3947911 |
| OPPOSITION | US4393537 |
| OPPOSITION | US4845798 |
| OPPOSITION | US5177828 |
| OPPOSITION | US5791004 |
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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Refund of fees
Appeal
Mar 5, 2025
Mar 5, 2025
Feb 28, 2025
(Electronic) Receipt
Appeal
Feb 28, 2025
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Feb 28, 2025
Withdrawal of an appeal
Appeal
Jan 20, 2025
Jan 20, 2025
Dec 31, 2024
(Electronic) Receipt
Appeal
Dec 31, 2024
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Notice of appeal
Appeal
Oct 31, 2024
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OPPO
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Sep 27, 2022
(Electronic) Receipt
Search/Exam
Sep 27, 2022
Annexes in respect of a client data request
Search/Exam
Sep 27, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 27, 2022
Jan 18, 2022
Dec 9, 2021
Decision to grant a European patent
Search/Exam
Nov 25, 2021
(Electronic) Receipt
Search/Exam
Nov 25, 2021
Filing of the translations of the claims
Search/Exam
Nov 25, 2021
French translation of claims
Search/Exam
Nov 25, 2021
German translation of the claims
Search/Exam
Sep 24, 2021
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Intention to grant (signatures)
Search/Exam
Sep 24, 2021
Text intended for grant (clean copy)
Search/Exam
Sep 24, 2021
Aug 6, 2021
Examination started
Search/Exam
Jul 21, 2021
(Electronic) Receipt
Search/Exam
Jul 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 6, 2021
(Electronic) Receipt
Search/Exam
Apr 6, 2021
Apr 6, 2021
Amended description with annotations
Search/Exam
Apr 6, 2021
Amendments received before examination
Search/Exam
Apr 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 4, 2020
Sep 23, 2020
Sep 21, 2020
Communication to designated inventor
Search/Exam
Aug 26, 2020
(Electronic) Receipt
Search/Exam
Aug 26, 2020
Annex
Search/Exam
Aug 26, 2020
Request for entry into the European phase
Search/Exam
Aug 11, 2020
Jun 5, 2020
Information on entry into European phase
Search/Exam
Aug 19, 2019
Aug 1, 2019
Copy of the international search report
Search/Exam
Aug 1, 2019
Published international application - A1
Search/Exam
May 16, 2019
ISR: cited documents
PCTISA
May 16, 2019
May 16, 2019
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Mar 12, 2019
Mar 4, 2019
Abstract
PCTISA
Mar 4, 2019
Claims
PCTISA
Mar 4, 2019
Description
PCTISA
Mar 4, 2019
Drawings
PCTISA
Mar 4, 2019
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Sep 20, 2018
Priority search results copy provided by EPO
Search/Exam