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The patent EP2788104 was granted to Langh Patents on Dec 13, 2017. The application was filed on Oct 11, 2012 under application number EP12868418A. 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 |
|---|---|---|---|
| BOLL & KIRCH FILTERBAU | Sep 13, 2018 | PATENTANWALTE BUSCHHOFF HENNICKE ALTHAUS | ADMISSIBLE |
| LIQTECH | Sep 13, 2018 | ANDREASEN | ADMISSIBLE |
| YARA MARINE | Sep 12, 2018 | PAPPAERT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1957181 |
| INTERNATIONAL-SEARCH-REPORT | US2008197075 |
| INTERNATIONAL-SEARCH-REPORT | US2010224070 |
| OPPOSITION | CN101104130 |
| OPPOSITION | CN101757846 |
| OPPOSITION | DE202004002616U |
| OPPOSITION | EP0592372 |
| OPPOSITION | EP0656806 |
| OPPOSITION | EP1857169 |
| OPPOSITION | EP1957181 |
| OPPOSITION | EP2402288 |
| OPPOSITION | EP3028760 |
| OPPOSITION | US2004079228 |
| OPPOSITION | US2008197075 |
| OPPOSITION | US2010206171 |
| OPPOSITION | US2010224062 |
| OPPOSITION | US2010224070 |
| OPPOSITION | US2010266472 |
| OPPOSITION | US2012018671 |
| OPPOSITION | US5518624 |
| OPPOSITION | US8038774 |
| OPPOSITION | WO02055182 |
| OPPOSITION | WO2007045721 |
| OPPOSITION | WO2011073503 |
| OPPOSITION | WO2011085908 |
| OPPOSITION | WO9944722 |
| SEARCH | EP0592372 |
| SEARCH | US2004079228 |
| SEARCH | WO02055182 |
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.
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Annexes in respect of a client data request
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French translation of claims
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Letter accompanying subsequently filed items
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Jun 23, 2017
Text intended for grant (clean copy)
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Jan 10, 2017
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Letter accompanying subsequently filed items
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Abstract
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Abstract
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Amended claims with annotations
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Letter accompanying subsequently filed items
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European search opinion
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Supplementary European search report
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Search started
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Communication to designated inventor
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Reply by International Bureau
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Amended claims with annotations
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Amended description with annotations
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Annex
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Annex
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Annex
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Matter concerning the application
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Jul 7, 2014
Priority search results
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Jul 7, 2014
Request for entry into the European phase
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Jun 27, 2014
Information on entry into European phase
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Jun 12, 2014
Notification of the recording of a change
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Feb 5, 2014
Notification of election of EPO
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Oct 10, 2013
Copy of the international search report
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Oct 10, 2013
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Published international application - A2
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