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The patent EP1646417 was granted to Cipla EU on Dec 5, 2018. The application was filed on Jul 13, 2004 under application number EP04743399A. 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 |
|---|---|---|---|
| CHIESI FARMACEUTICI | Aug 8, 2019 | BANZER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0308524 |
| DESCRIPTION | US4972830 |
| DESCRIPTION | US5069204 |
| INTERNATIONAL-SEARCH-REPORT | US2002104532 |
| INTERNATIONAL-SEARCH-REPORT | US2002195102 |
| INTERNATIONAL-SEARCH-REPORT | US4972830 |
| INTERNATIONAL-SEARCH-REPORT | US5069204 |
| INTERNATIONAL-SEARCH-REPORT | US5349945 |
| INTERNATIONAL-SEARCH-REPORT | US6405727 |
| INTERNATIONAL-SEARCH-REPORT | WO9324167 |
| OPPOSITION | EP0414536 |
| OPPOSITION | US2002104532 |
| OPPOSITION | US2002195102 |
| OPPOSITION | US4664107 |
| OPPOSITION | US4972830 |
| OPPOSITION | US5069204 |
| OPPOSITION | US5349945 |
| OPPOSITION | US6405727 |
| OPPOSITION | WO2004028608 |
| OPPOSITION | WO9324167 |
| OPPOSITION | WO9949916 |
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.
Date
Description
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May 5, 2023
May 3, 2023
Advice of delivery
Appeal
May 3, 2023
Refund of fees
Search/Exam
May 2, 2023
May 2, 2023
May 2, 2023
May 2, 2023
Apr 25, 2023
(Electronic) Receipt
Appeal
Apr 25, 2023
Apr 25, 2023
Apr 25, 2023
Withdrawal of an appeal
Appeal
Apr 4, 2023
Apr 4, 2023
Mar 31, 2023
Advice of delivery
Appeal
Mar 27, 2023
Mar 27, 2023
Mar 27, 2023
Mar 27, 2023
Mar 22, 2023
Mar 22, 2023
Jan 3, 2023
Dec 22, 2022
(Electronic) Receipt
Appeal
Dec 22, 2022
Dec 22, 2022
Dec 20, 2021
Dec 15, 2021
(Electronic) Receipt
Appeal
Dec 15, 2021
Dec 15, 2021
Claims
Appeal
Dec 15, 2021
Dec 15, 2021
Dec 2, 2021
Nov 24, 2021
(Electronic) Receipt
Appeal
Nov 24, 2021
Nov 24, 2021
Reply to appeal
Appeal
Jul 15, 2021
Jul 10, 2021
(Electronic) Receipt
Appeal
Jul 10, 2021
Jul 10, 2021
Jul 10, 2021
Jul 10, 2021
Jul 10, 2021
Jul 10, 2021
Jul 10, 2021
Jul 10, 2021
Jul 10, 2021
Claims
Appeal
Jul 10, 2021
Description
Appeal
Jul 10, 2021
Jul 10, 2021
May 20, 2021
May 11, 2021
(Electronic) Receipt
Appeal
May 11, 2021
May 11, 2021
Notice of appeal
Appeal
May 6, 2021
May 5, 2021
Apr 29, 2021
Apr 9, 2021
Apr 9, 2021
Apr 9, 2021
Mar 15, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Means of redress
OPPO
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
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Mar 11, 2021
Mar 11, 2021
Mar 11, 2021
Jan 15, 2021
Jan 13, 2021
Jan 13, 2021
Jan 11, 2021
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Dec 2, 2020
Dec 2, 2020
Nov 19, 2020
Nov 13, 2020
Nov 13, 2020
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Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Description
OPPO
Nov 13, 2020
Description
OPPO
Nov 13, 2020
Description
OPPO
Nov 13, 2020
Description
OPPO
Nov 13, 2020
Nov 13, 2020
Oct 29, 2020
Oct 21, 2020
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Jun 24, 2020
May 11, 2020
May 7, 2020
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May 7, 2020
May 7, 2020
May 7, 2020
May 4, 2020
Feb 13, 2020
Feb 7, 2020
Feb 7, 2020
Feb 7, 2020
Feb 7, 2020
Claims
OPPO
Feb 7, 2020
Claims
OPPO
Feb 7, 2020
Claims
OPPO
Feb 7, 2020
Feb 7, 2020
Oct 8, 2019
Oct 8, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Dec 17, 2018
Nov 8, 2018
Decision to grant a European patent
Search/Exam
Sep 13, 2018
(Electronic) Receipt
Search/Exam
Sep 13, 2018
Filing of the translations of the claims
Search/Exam
Sep 13, 2018
French translation of claims
Search/Exam
Sep 13, 2018
German translation of the claims
Search/Exam
May 9, 2018
May 9, 2018
May 9, 2018
Intention to grant (signatures)
Search/Exam
May 9, 2018
Text intended for grant
Search/Exam
Nov 2, 2017
Sep 12, 2017
(Electronic) Receipt
Search/Exam
Sep 12, 2017
Annexes in respect of a client data request
Search/Exam
Sep 12, 2017
Annexes in respect of a client data request
Search/Exam
Sep 12, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2017
Jul 23, 2014
Jul 8, 2014
Jul 7, 2014
Submission concerning representation
Search/Exam
May 14, 2014
Feb 20, 2014
Jan 30, 2014
Decision to allow further processing
Search/Exam
Jan 15, 2014
(Electronic) Receipt
Search/Exam
Jan 15, 2014
Amended claims with annotations
Search/Exam
Jan 15, 2014
Amended description with annotations
Search/Exam
Jan 15, 2014
Claims
Search/Exam
Jan 15, 2014
Description
Search/Exam
Jan 15, 2014
Letter accompanying subsequently filed items
Search/Exam
Jan 15, 2014
Nov 5, 2013
Aug 12, 2013
Aug 6, 2013
Mar 28, 2013
Annex to the communication
Search/Exam
Mar 28, 2013
Communication from the Examining Division
Search/Exam
Sep 4, 2012
Jan 30, 2012
Letter concerning fees and payments
Search/Exam
Dec 30, 2011
Decision to allow further processing
Search/Exam
Dec 15, 2011
Amended claims with annotations
Search/Exam
Dec 15, 2011
Claims
Search/Exam
Dec 15, 2011
Oct 5, 2011
Sep 2, 2011
Jun 28, 2011
Jun 14, 2011
Feb 18, 2011
Annex to the communication
Search/Exam
Feb 18, 2011
Communication from the Examining Division
Search/Exam
Oct 19, 2007
Sep 20, 2007
Aug 16, 2007
Aug 16, 2007
Request for transfer of rights
Search/Exam
Mar 7, 2007
Feb 19, 2007
Feb 19, 2007
Request for transfer of rights
Search/Exam
Jan 26, 2007
Dec 20, 2006
Request for transfer of rights
Search/Exam
Dec 18, 2006
Letter concerning the inventor
Search/Exam
Sep 25, 2006
Submission concerning representation
Search/Exam
Sep 4, 2006
Apr 3, 2006
Apr 3, 2006
Amendments received before examination
Search/Exam
Mar 31, 2006
Amendments received before examination
Search/Exam
Mar 31, 2006
Mar 8, 2006
Mar 1, 2006
Jan 18, 2006
Matter concerning the application
Search/Exam
Jan 18, 2006
Request for entry into the European phase
Search/Exam
Dec 2, 2005
Information on entry into European phase
Search/Exam
Feb 15, 2005
Jan 27, 2005
Copy of the international search report
Search/Exam
Jan 27, 2005
Published international application - A1
Search/Exam
Jul 30, 2004
Abstract
PCTISA
Jul 30, 2004
Claims
PCTISA
Jul 30, 2004
Description
PCTISA
Jul 30, 2004
Drawings
PCTISA