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The patent EP3354276 was granted to Meritage Pharma on Jan 1, 2020. The application was filed on Nov 12, 2008 under application number EP17210162A. 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 |
|---|---|---|---|
| AECHTER | Oct 1, 2020 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
| DR FALK PHARMA | Sep 23, 2020 | LEDERER & KELLER PATENTANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4900552 |
| DESCRIPTION | US5814330 |
| DESCRIPTION | US6306789 |
| DESCRIPTION | US6348502 |
| DESCRIPTION | US6509028 |
| DESCRIPTION | US6562363 |
| DESCRIPTION | US6638521 |
| OPPOSITION | FR2884422 |
| OPPOSITION | US2004228919 |
| OPPOSITION | US2007111978 |
| OPPOSITION | US3539365 |
| OPPOSITION | WO2009064819 |
| OPPOSITION | WO9609829 |
| SEARCH | US2007111978 |
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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Dec 5, 2019
Decision to grant a European patent
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Nov 25, 2019
(Electronic) Receipt
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Nov 25, 2019
Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Sep 23, 2019
Amended claims with annotations
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Amended description with annotations
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Sep 23, 2019
Claims
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Sep 23, 2019
Description
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Jul 19, 2019
Examination started
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Jan 31, 2019
(Electronic) Receipt
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Jan 31, 2019
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Amended claims with annotations
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Amended description with annotations
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Jan 31, 2019
Amendments received before examination
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Jan 31, 2019
Letter accompanying subsequently filed items
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Aug 6, 2018
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Notification of forthcoming publication
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Jun 13, 2018
Refund of fees
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European search opinion
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European search report
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Jun 6, 2018
Information on Search Strategy
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May 28, 2018
Search started
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Letter which had not been notified
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Mar 12, 2018
Letter which had not been notified
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Mar 6, 2018
(Electronic) Receipt
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Mar 6, 2018
Claims
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Mar 6, 2018
Letter accompanying subsequently filed items
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Mar 6, 2018
Matter concerning the application
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Feb 14, 2018
Communication to designated inventor
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Communication to designated inventor
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Jan 12, 2018
Invitation to file claims
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Abstract
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Description
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Dec 22, 2017
Request for grant of a European patent
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