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The patent EP2552424 was granted to Chiesi Farmaceutici on May 9, 2018. The application was filed on Mar 11, 2011 under application number EP11712196A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| POLPHARMA | Feb 7, 2019 | HOFFMANN EITLE | ADMISSIBLE |
| ZBM PATENTS ZEA | Jan 8, 2019 | ZBM PATENTS ZEA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4008209 |
| DESCRIPTION | US4086219 |
| DESCRIPTION | US4124577 |
| DESCRIPTION | US4317815 |
| DESCRIPTION | US5110904 |
| DESCRIPTION | US6528096 |
| DESCRIPTION | WO0053158 |
| DESCRIPTION | WO2004012801 |
| DESCRIPTION | WO2004073827 |
| DESCRIPTION | WO2008114052 |
| DESCRIPTION | WO2008155570 |
| DESCRIPTION | WO2010007447 |
| INTERNATIONAL-SEARCH-REPORT | EP2080508 |
| INTERNATIONAL-SEARCH-REPORT | WO0053157 |
| INTERNATIONAL-SEARCH-REPORT | WO2009001064 |
| OPPOSITION | EP2621494 |
| OPPOSITION | US6645466 |
| OPPOSITION | WO0053157 |
| OPPOSITION | WO0178694 |
| OPPOSITION | WO2005105043 |
| OPPOSITION | WO2009001064 |
| OPPOSITION | WO2009061273 |
| OPPOSITION | WO2012041717 |
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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Nov 15, 2023
Refund of fees
Appeal
Nov 10, 2023
Nov 9, 2023
Nov 9, 2023
Nov 9, 2023
Nov 9, 2023
Nov 6, 2023
Nov 3, 2023
(Electronic) Receipt
Appeal
Nov 3, 2023
Nov 3, 2023
Withdrawal of an appeal
Appeal
Oct 31, 2023
Refund of fees
Appeal
Oct 27, 2023
Oct 27, 2023
Oct 24, 2023
(Electronic) Receipt
Appeal
Oct 24, 2023
Oct 24, 2023
Withdrawal of an appeal
Appeal
Oct 6, 2023
Oct 6, 2023
Oct 6, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 29, 2023
Aug 23, 2023
(Electronic) Receipt
Appeal
Aug 23, 2023
Jul 12, 2023
May 30, 2023
May 24, 2023
(Electronic) Receipt
Appeal
May 24, 2023
May 24, 2023
May 19, 2023
May 18, 2023
May 12, 2023
(Electronic) Receipt
Appeal
May 12, 2023
May 12, 2023
May 11, 2023
May 11, 2023
May 11, 2023
May 8, 2023
May 3, 2023
Apr 27, 2023
(Electronic) Receipt
Appeal
Apr 27, 2023
Apr 27, 2023
Feb 13, 2023
Jan 18, 2023
Jan 13, 2023
(Electronic) Receipt
Appeal
Jan 13, 2023
Jan 13, 2023
Dec 6, 2022
Mar 23, 2022
Mar 18, 2022
(Electronic) Receipt
Appeal
Mar 18, 2022
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Reply to appeal
Appeal
Nov 10, 2021
Nov 10, 2021
Nov 10, 2021
Nov 4, 2021
(Electronic) Receipt
Appeal
Nov 4, 2021
(Electronic) Receipt
Appeal
Nov 4, 2021
Nov 4, 2021
Nov 4, 2021
Nov 4, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
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Sep 9, 2021
Sep 7, 2021
Sep 6, 2021
(Electronic) Receipt
Appeal
Sep 6, 2021
Sep 6, 2021
Notice of appeal
Appeal
Sep 3, 2021
(Electronic) Receipt
Appeal
Sep 3, 2021
Sep 3, 2021
Notice of appeal
Appeal
Aug 2, 2021
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Jul 30, 2021
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Means of redress
OPPO
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Oct 10, 2019
Request concerning representative opponent
Search/Exam
Jul 3, 2019
Jul 3, 2019
Jun 27, 2019
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May 22, 2018
Apr 12, 2018
Decision to grant a European patent
Search/Exam
Feb 22, 2018
Feb 22, 2018
Feb 22, 2018
Intention to grant (signatures)
Search/Exam
Feb 22, 2018
Feb 22, 2018
Text intended for grant (clean copy)
Search/Exam
Feb 22, 2018
Jan 16, 2018
(Electronic) Receipt
Search/Exam
Jan 16, 2018
Amended claims with annotations
Search/Exam
Jan 16, 2018
Amended description with annotations
Search/Exam
Jan 16, 2018
Claims
Search/Exam
Jan 16, 2018
Description
Search/Exam
Jan 16, 2018
French translation of claims
Search/Exam
Jan 16, 2018
German translation of the claims
Search/Exam
Jan 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 16, 2018
Sep 13, 2017
Sep 13, 2017
Sep 13, 2017
Intention to grant (signatures)
Search/Exam
Sep 13, 2017
Text intended for grant (clean copy)
Search/Exam
Sep 13, 2017
Nov 23, 2016
(Electronic) Receipt
Search/Exam
Nov 23, 2016
Amended claims with annotations
Search/Exam
Nov 23, 2016
Claims
Search/Exam
Nov 23, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 23, 2016
Nov 23, 2016
Sep 9, 2016
Sep 7, 2016
Sep 2, 2016
May 18, 2016
Annex to the communication
Search/Exam
May 18, 2016
Communication from the Examining Division
Search/Exam
May 10, 2016
Examination started
Search/Exam
Feb 1, 2013
(Electronic) Receipt
Search/Exam
Feb 1, 2013
Feb 1, 2013
Amendments received before examination
Search/Exam
Feb 1, 2013
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2013
Jan 9, 2013
Nov 8, 2012
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 1, 2012
Priority search results copy provided by EPO
Search/Exam
Oct 15, 2012
Sep 28, 2012
(Electronic) Receipt
Search/Exam
Sep 28, 2012
Request for entry into the European phase
Search/Exam
Aug 10, 2012
Information on entry into European phase
Search/Exam
Oct 26, 2011
Oct 6, 2011
Copy of the international search report
Search/Exam
Oct 6, 2011
Published international application - A1
Search/Exam
Sep 16, 2011
Sep 16, 2011
Sep 16, 2011
Mar 11, 2011
(Electronic) Receipt
PCTRO
Mar 11, 2011
Abstract
PCTRO
Mar 11, 2011
Claims
PCTRO
Mar 11, 2011
Description
PCTRO
Mar 11, 2011
Drawings
PCTRO
Mar 11, 2011