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The patent EP2929828 was granted to Hydroflex OHG on May 23, 2018. The application was filed on Apr 11, 2014 under application number EP14164509A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| ECOLAB USA | Feb 21, 2019 | GODEMEYER BLUM LENZE PATENTANWALTE PARTNERSCHAFT MBB WERKPATENT | ADMISSIBLE |
| PFENNIG REINIGUNGTECHNIK VILEDA | Feb 21, 2019 | HOPPE | ADMISSIBLE |
| CONTEC | Jan 29, 2019 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN202723768U |
| OPPOSITION | DE19823044 |
| OPPOSITION | DE19839505 |
| OPPOSITION | DE20004583U |
| OPPOSITION | DE20005016U |
| OPPOSITION | EP0382691 |
| OPPOSITION | EP0739600 |
| OPPOSITION | EP0779055 |
| OPPOSITION | EP0953314 |
| OPPOSITION | GB2416484 |
| OPPOSITION | GB2502547 |
| OPPOSITION | US2002183233 |
| OPPOSITION | US5887311 |
| OPPOSITION | WO2010094328 |
| OPPOSITION | WO2011025834 |
| OPPOSITION | WO9962393 |
| SEARCH | DE20005016U |
| SEARCH | DE20016620U |
| SEARCH | EP0382691 |
| SEARCH | EP0953314 |
| SEARCH | KR20020008938 |
| SEARCH | US2013031872 |
| SEARCH | US4896768 |
| SEARCH | WO0152714 |
| SEARCH | WO9840004 |
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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General enquiry
OPPO
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Jun 4, 2018
Apr 26, 2018
Decision to grant a European patent
Search/Exam
Mar 23, 2018
(Electronic) Receipt
Search/Exam
Mar 23, 2018
English translation of the claims
Search/Exam
Mar 23, 2018
Filing of the translations of the claims
Search/Exam
Mar 23, 2018
French translation of claims
Search/Exam
Mar 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 8, 2017
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Dec 8, 2017
Intention to grant (signatures)
Search/Exam
Dec 8, 2017
Text intended for grant (clean copy)
Search/Exam
Dec 8, 2017
Sep 20, 2017
Examination started
Search/Exam
May 11, 2017
Submission concerning representation
Search/Exam
Apr 14, 2016
(Electronic) Receipt
Search/Exam
Apr 14, 2016
Apr 14, 2016
Amended claims with annotations
Search/Exam
Apr 14, 2016
Apr 14, 2016
Amended description with annotations
Search/Exam
Apr 14, 2016
Amendments received before examination
Search/Exam
Apr 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2015
Sep 16, 2015
Notification of forthcoming publication
Search/Exam
Jun 17, 2015
Communication to designated inventor
Search/Exam
Jun 12, 2015
Designation of inventor
Search/Exam
Jun 12, 2015
Letter concerning the inventor
Search/Exam
Jun 10, 2015
Designation of inventor
Search/Exam
Jun 10, 2015
Letter concerning the inventor
Search/Exam
Mar 26, 2015
Mar 26, 2015
European search opinion
Search/Exam
Mar 26, 2015
European search report
Search/Exam
Feb 18, 2015
(Electronic) Receipt
Search/Exam
Feb 18, 2015
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2015
Letter concerning search matters
Search/Exam
Dec 10, 2014
Dec 10, 2014
Partial European search report
Search/Exam
Jul 21, 2014
Submission concerning representation
Search/Exam
May 16, 2014
Deficiency in designation of inventor
Search/Exam
Apr 11, 2014
Abstract
Search/Exam
Apr 11, 2014
Apr 11, 2014
Claims
Search/Exam
Apr 11, 2014
Description
Search/Exam
Apr 11, 2014
Request for grant of a European patent
Search/Exam