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The patent EP3055546 was granted to Ingevity South Carolina on Sep 19, 2018. The application was filed on Apr 9, 2014 under application number EP14853040A. 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 |
|---|---|---|---|
| MAHLE | Jun 14, 2019 | BRP RENAUD & PARTNER MBB RECHTSANWALTE PATENTANWALTE STEUERBERATER | ADMISSIBLE |
| BASF | Jan 30, 2019 | ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2007266997 |
| INTERNATIONAL-SEARCH-REPORT | US2011067994 |
| INTERNATIONAL-SEARCH-REPORT | US2012204720 |
| INTERNATIONAL-SEARCH-REPORT | US6540815 |
| OPPOSITION | DE102004063434 |
| OPPOSITION | EP1446569 |
| OPPOSITION | EP1491755 |
| OPPOSITION | EP2906811 |
| OPPOSITION | JP2013177889 |
| OPPOSITION | US2003005912 |
| OPPOSITION | US2005014642 |
| OPPOSITION | US2006141256 |
| OPPOSITION | US2007113831 |
| OPPOSITION | US2010107581 |
| OPPOSITION | US2010212496 |
| OPPOSITION | US2012186563 |
| OPPOSITION | US2013037006 |
| OPPOSITION | US2013186375 |
| OPPOSITION | US5039651 |
| OPPOSITION | US5914294 |
| OPPOSITION | US6279548 |
| OPPOSITION | US6540815 |
| OPPOSITION | USRE38844E |
| OPPOSITION | WO2009061533 |
| OPPOSITION | WO2014059190 |
| OPPOSITION | WO2015053815 |
| SEARCH | EP1491755 |
| SEARCH | US2007078056 |
| SEARCH | US2010212496 |
| SEARCH | US6279548 |
| SEARCH | US6540815 |
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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Decision to grant a European patent
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Aug 8, 2018
(Electronic) Receipt
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Aug 8, 2018
Filing of the translations of the claims
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Aug 8, 2018
French translation of claims
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Aug 8, 2018
German translation of the claims
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Aug 8, 2018
Letter accompanying subsequently filed items
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Apr 24, 2018
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Intention to grant (signatures)
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Apr 24, 2018
Text intended for grant (clean copy)
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Apr 24, 2018
Mar 20, 2018
Examination started
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Jul 31, 2017
(Electronic) Receipt
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Jul 31, 2017
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Amended claims with annotations
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Amendments received before examination
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Jul 31, 2017
Letter accompanying subsequently filed items
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European search opinion
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Jun 6, 2017
Information on Search Strategy
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Jun 6, 2017
Supplementary European search report
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Mar 2, 2017
Priority search results copy provided by EPO
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Oct 31, 2016
(Electronic) Receipt
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Oct 31, 2016
Letter accompanying subsequently filed items
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Oct 31, 2016
Letter concerning fees and payments
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Sep 21, 2016
Communication to designated inventor
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Aug 4, 2016
(Electronic) Receipt
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Aug 4, 2016
Letter accompanying subsequently filed items
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Aug 4, 2016
Letter concerning the inventor
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Jul 21, 2016
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Refund of fees
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Refund of fees
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Jun 28, 2016
Letter which had not been notified
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Jun 10, 2016
Jun 8, 2016
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Jun 8, 2016
Communication to designated inventor
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Apr 28, 2016
Apr 15, 2016
(Electronic) Receipt
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Apr 15, 2016
Notification of the recording of a change
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Apr 15, 2016
Notification of the recording of a change
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Apr 15, 2016
Request for entry into the European phase
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Apr 15, 2016
Submission concerning representation
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Feb 19, 2016
Information on entry into European phase
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May 6, 2015
Apr 16, 2015
Copy of the international search report
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Apr 16, 2015
Published international application - A1
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