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The patent EP1793855 was granted to Elan Pharmaceuticals on Jan 19, 2022. The application was filed on Aug 9, 2005 under application number EP05783732A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| MATHYS & SQUIRE | Aug 14, 2019 | MILLER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20030471929 |
| DESCRIPTION | US20040984192 |
| DESCRIPTION | EP0378881 |
| DESCRIPTION | EP0427347 |
| DESCRIPTION | GB2220211 |
| DESCRIPTION | US2005009150 |
| DESCRIPTION | US4634664 |
| DESCRIPTION | US4634666 |
| DESCRIPTION | US4666829 |
| DESCRIPTION | US4855283 |
| DESCRIPTION | US5057540 |
| DESCRIPTION | US5196512 |
| DESCRIPTION | US5208036 |
| DESCRIPTION | US5225539 |
| DESCRIPTION | US5229490 |
| DESCRIPTION | US5264618 |
| DESCRIPTION | US5279833 |
| DESCRIPTION | US5283185 |
| DESCRIPTION | US5304489 |
| DESCRIPTION | US5399346 |
| DESCRIPTION | US5530101 |
| DESCRIPTION | US5545806 |
| DESCRIPTION | US5565332 |
| DESCRIPTION | US5569825 |
| DESCRIPTION | US5585089 |
| DESCRIPTION | US5593970 |
| DESCRIPTION | US5612486 |
| DESCRIPTION | US5625126 |
| DESCRIPTION | US5633425 |
| DESCRIPTION | US5643576 |
| DESCRIPTION | US5661016 |
| DESCRIPTION | US5693761 |
| DESCRIPTION | US5693762 |
| DESCRIPTION | US5733743 |
| DESCRIPTION | US5736142 |
| DESCRIPTION | US5741957 |
| DESCRIPTION | US5770429 |
| DESCRIPTION | US5789650 |
| DESCRIPTION | US5814318 |
| DESCRIPTION | US5837242 |
| DESCRIPTION | US5849992 |
| DESCRIPTION | US5858657 |
| DESCRIPTION | US5871907 |
| DESCRIPTION | US5874299 |
| DESCRIPTION | US5877218 |
| DESCRIPTION | US5877397 |
| DESCRIPTION | WO0072876 |
| DESCRIPTION | WO0072880 |
| DESCRIPTION | WO0160794 |
| DESCRIPTION | WO2005013889 |
| DESCRIPTION | WO2005047860 |
| DESCRIPTION | WO9007861 |
| DESCRIPTION | WO9014837 |
| DESCRIPTION | WO9110741 |
| DESCRIPTION | WO9117271 |
| DESCRIPTION | WO9118980 |
| DESCRIPTION | WO9201047 |
| DESCRIPTION | WO9220791 |
| DESCRIPTION | WO9222653 |
| DESCRIPTION | WO9301222 |
| DESCRIPTION | WO9306121 |
| DESCRIPTION | WO9408051 |
| DESCRIPTION | WO9412629 |
| DESCRIPTION | WO9505853 |
| DESCRIPTION | WO9507707 |
| DESCRIPTION | WO9512608 |
| DESCRIPTION | WO9530642 |
| DESCRIPTION | WO9535503 |
| DESCRIPTION | WO9634625 |
| DESCRIPTION | WO9717613 |
| DESCRIPTION | WO9717614 |
| DESCRIPTION | WO9823635 |
| DESCRIPTION | WO9825386 |
| DESCRIPTION | WO9840100 |
| DESCRIPTION | WO9859050 |
| INTERNATIONAL-SEARCH-REPORT | US2002094335 |
| INTERNATIONAL-SEARCH-REPORT | US2002197258 |
| INTERNATIONAL-SEARCH-REPORT | WO2004041067 |
| INTERNATIONAL-SEARCH-REPORT | WO2005047860 |
| OPPOSITION | EP1572894 |
| OPPOSITION | EP1578253 |
| OPPOSITION | WO03000714 |
| OPPOSITION | WO03045128 |
| OPPOSITION | WO2004041067 |
| OPPOSITION | WO2005047860 |
| OPPOSITION | WO2006020581 |
| SEARCH | WO2004041067 |
| SEARCH | WO2005013889 |
| SEARCH | WO2005047860 |
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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Refund of fees
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Communication of amended entries
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Jan 21, 2021
Letter accompanying subsequently filed items
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Request concerning representative opponent
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Request concerning representative opponent
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Decision to grant a European patent
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Oct 2, 2018
(Electronic) Receipt
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Filing of the translations of the claims
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Oct 2, 2018
French translation of claims
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Oct 2, 2018
German translation of the claims
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Oct 2, 2018
Letter accompanying subsequently filed items
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Sep 27, 2018
(Electronic) Receipt
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Sep 27, 2018
Annexes in respect of a client data request
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Sep 27, 2018
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Letter accompanying subsequently filed items
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Sep 27, 2018
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Intention to grant (signatures)
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May 25, 2018
Text intended for grant (clean copy)
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May 25, 2018
Text intended for grant (sequence listing)
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May 25, 2018
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(Electronic) Receipt
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Apr 5, 2018
Amended claims with annotations
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Amended description with annotations
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Apr 5, 2018
Claims
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Description
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Apr 5, 2018
Letter accompanying subsequently filed items
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Apr 5, 2018
Jan 26, 2018
Annex to the communication
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Jan 26, 2018
Communication from the Examining Division
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Dec 22, 2016
(Electronic) Receipt
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Dec 22, 2016
Amended claims with annotations
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Dec 22, 2016
Claims
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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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Apr 24, 2015
(Electronic) Receipt
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Apr 24, 2015
Amended claims with annotations
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Apr 24, 2015
Claims
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Apr 24, 2015
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Feb 26, 2015
Letter accompanying subsequently filed items
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Feb 26, 2015
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Annex to the communication
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Oct 16, 2014
Communication from the Examining Division
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Jul 23, 2014
CDS Clean up - amended applicant details
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Submission concerning representation
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Oct 15, 2012
(Electronic) Receipt
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Oct 15, 2012
Amended claims with annotations
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Oct 15, 2012
Claims
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Letter accompanying subsequently filed items
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Aug 3, 2012
Letter accompanying subsequently filed items
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Aug 3, 2012
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Annex to the communication
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Apr 5, 2012
Communication from the Examining Division
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Nov 9, 2011
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Sep 23, 2011
(Electronic) Receipt
Search/Exam
Sep 23, 2011
Annexes in respect of a client data request
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Sep 23, 2011
Annexes in respect of a client data request
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Sep 23, 2011
Annexes in respect of a client data request
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Sep 23, 2011
Letter accompanying subsequently filed items
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Sep 23, 2011
Jun 30, 2010
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Jan 25, 2010
Claims
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Jan 21, 2010
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Jul 13, 2009
Communication from the Examining Division
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Jun 19, 2009
Maintenance of the application
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Jun 17, 2009
Maintenance of the application
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Apr 9, 2009
Mar 23, 2009
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European search opinion
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Mar 23, 2009
Supplementary European search report
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Nov 15, 2007
Non-scannable object
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Nov 15, 2007
Nov 15, 2007
Sequence listing
Search/Exam
Oct 17, 2007
Refund of fees
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Oct 10, 2007
Deficiencies in sequence listing
Search/Exam
May 16, 2007
Apr 27, 2007
Apr 25, 2007
Apr 3, 2007
Mar 22, 2007
Copy of the international search report
Search/Exam
Mar 22, 2007
Mar 8, 2007
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Matter concerning the application
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Mar 8, 2007
Payment of fees and costs
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Mar 8, 2007
Request for entry into the European phase
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Mar 6, 2007
Fax request to enter the European phase
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Feb 27, 2007
Feb 16, 2007
Notification of the recording of a change
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Dec 29, 2006
Information on entry into European phase
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Mar 30, 2006
Mar 15, 2006
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Feb 23, 2006
Published international application - A2
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