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The patent EP3241550 was granted to Grnenthal on Jul 22, 2020. The application was filed on Nov 18, 2003 under application number EP17020237A. 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 |
|---|---|---|---|
| GENERICS UK | Apr 22, 2021 | ELKINGTON AND FIFE | ADMISSIBLE |
| TEVA PHARMACEUTICALS | Apr 21, 2021 | GREINER | WITHDRAWN |
| HEXAL | Apr 20, 2021 | KRAUS & LEDERER PARTGMBB | WITHDRAWN |
| DR SCHON | Apr 16, 2021 | DR SCHON | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE19525137 |
| DESCRIPTION | DE3309516 |
| DESCRIPTION | DE4426245 |
| DESCRIPTION | US4612008 |
| DESCRIPTION | US4765989 |
| DESCRIPTION | US4783337 |
| DESCRIPTION | US5330761 |
| DESCRIPTION | US5399362 |
| DESCRIPTION | US5455046 |
| DESCRIPTION | US5472711 |
| OPPOSITION | DE10059412 |
| OPPOSITION | EP0693475 |
| OPPOSITION | EP0693675 |
| OPPOSITION | EP1839654 |
| OPPOSITION | WO0226694 |
| OPPOSITION | WO0228817 |
| OPPOSITION | WO2004047823 |
| OTHER | EP1562567 |
| OTHER | EP1839654 |
| SEARCH | DE10059412 |
| SEARCH | EP0693475 |
| SEARCH | WO0226694 |
| SEARCH | WO0228817 |
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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Description
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Letter accompanying subsequently filed items
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Decision to grant a European patent
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(Electronic) Receipt
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Apr 6, 2020
Filing of the translations of the claims
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Apr 6, 2020
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Amended description with annotations
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Description
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Dec 6, 2019
English translation of the claims
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French translation of claims
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Dec 6, 2019
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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Amended claims with annotations
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Amended description with annotations
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Apr 30, 2019
Claims
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Apr 30, 2019
Description
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Feb 27, 2019
Letter accompanying subsequently filed items
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Feb 27, 2019
Nov 20, 2018
Annex to the communication
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Nov 20, 2018
Communication from the Examining Division
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Nov 13, 2018
Examination started
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Aug 1, 2018
(Electronic) Receipt
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Letter accompanying subsequently filed items
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Aug 1, 2018
Priority search results
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Amended claims with annotations
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May 8, 2018
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Nov 13, 2017
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Notification of forthcoming publication
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Sep 20, 2017
Refund of fees
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Sep 8, 2017
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European search opinion
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Sep 8, 2017
European search report
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Sep 8, 2017
Information on Search Strategy
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Aug 21, 2017
Search started
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Jul 25, 2017
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Abstract
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Jun 1, 2017
Claims
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Jun 1, 2017
Description
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Jun 1, 2017
Designation of inventor
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Jun 1, 2017
Payment of fees and costs
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Jun 1, 2017
Request for grant of a European patent
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Jul 6, 2004
Jul 6, 2004