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The patent EP2955180 was granted to F Hoffmann LA Roche on Jan 10, 2018. The application was filed on Mar 31, 2010 under application number EP15171526A. The patent is currently recorded with a legal status of "Revoked".
Improving the solubility and bioavailability of the compound propane-1-sulfonic acid {3-[5-(4-chloro-phenyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl]-2,4-difluoro-phenyl}-amide (Compound I) by forming solid dispersions and molecular complexes with polymers. This involves microprecipitating Compound I with a polymer like hydroxypropyl methylcellulose acetate succinate (HPMC-AS) using methods like spray drying, lyophilization, solvent-controlled precipitation, pH-controlled precipitation, hot melt extrusion, and supercritical fluid technology. The resulting compositions have improved water solubility and bioavailability compared to the cryst

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 | Oct 5, 2018 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2004077595 |
| DESCRIPTION | US6350786 |
| DESCRIPTION | WO2007002325 |
| OPPOSITION | WO2007002325 |
| SEARCH | WO2007002325 |
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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Notice of appeal
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Decision to grant a European patent
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French translation of claims
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Dec 4, 2017
German translation of the claims
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Dec 4, 2017
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Jul 26, 2017
Text intended for grant (clean copy)
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Apr 4, 2017
Examination started
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Matter concerning the application
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Jan 31, 2017
(Electronic) Receipt
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Jan 31, 2017
Letter accompanying subsequently filed items
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Jan 31, 2017
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Brief communication with time limit
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Nov 30, 2016
Decision to allow further processing
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Oct 27, 2016
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(Electronic) Receipt
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Oct 11, 2016
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Amended claims with annotations
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Oct 11, 2016
Amendments received before examination
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Oct 11, 2016
Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Aug 1, 2016
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Communication to designated inventor
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Apr 26, 2016
(Electronic) Receipt
Search/Exam
Apr 26, 2016
Letter accompanying subsequently filed items
Search/Exam
Apr 26, 2016
Letter concerning the inventor
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Letter which had not been notified
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Letter which had not been notified
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Nov 18, 2015
Notification of forthcoming publication
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Nov 10, 2015
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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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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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Oct 28, 2015
(Electronic) Receipt
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Oct 28, 2015
Designation of inventor
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Oct 28, 2015
Letter accompanying subsequently filed items
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Oct 28, 2015
Letter concerning the inventor
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Oct 21, 2015
Refund of fees
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Oct 21, 2015
Refund of fees
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Sep 23, 2015
Refund of fees
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Sep 8, 2015
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European search opinion
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Sep 8, 2015
European search report
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Sep 1, 2015
Modified abstract
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Aug 27, 2015
Search started
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Aug 18, 2015
Deficiency in designation of inventor
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Jun 10, 2015
Abstract
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Jun 10, 2015
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Claims
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Jun 10, 2015
Description
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Jun 10, 2015
Drawings
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Jun 10, 2015
Request for grant of a European patent
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Jan 16, 2012
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