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The patent EP3500241 was granted to Chiesi Farmaceutici on Oct 4, 2023. The application was filed on Aug 17, 2017 under application number EP17758473A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| ELKINGTON AND FIFE | Jul 4, 2024 | ELKINGTON AND FIFE | ADMISSIBLE |
| BOTTI & FERRARI | Jul 3, 2024 | BOTTI & FERRARI | ADMISSIBLE |
| HASELTINE LAKE KEMPNER | Jul 3, 2024 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1157689 |
| DESCRIPTION | US2011150782 |
| DESCRIPTION | US2015182450 |
| DESCRIPTION | US2015182459 |
| DESCRIPTION | US2956062 |
| DESCRIPTION | WO0149350 |
| DESCRIPTION | WO0176575 |
| DESCRIPTION | WO03053501 |
| DESCRIPTION | WO2005074918 |
| DESCRIPTION | WO2005107873 |
| DESCRIPTION | WO2005110402 |
| DESCRIPTION | WO2006105401 |
| DESCRIPTION | WO2007057219 |
| DESCRIPTION | WO2007057221 |
| DESCRIPTION | WO2007057222 |
| DESCRIPTION | WO2007057223 |
| INTERNATIONAL-SEARCH-REPORT | US2015150787 |
| INTERNATIONAL-SEARCH-REPORT | US2015182459 |
| INTERNATIONAL-SEARCH-REPORT | WO2014033057 |
| OPPOSITION | US10098837 |
| OPPOSITION | US2015150787 |
| OPPOSITION | US2015182459 |
| OPPOSITION | WO2011076843 |
| OPPOSITION | WO2014033057 |
| OPPOSITION | WO2018033598 |
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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Oct 17, 2023
Sep 7, 2023
Decision to grant a European patent
Search/Exam
Jul 24, 2023
(Electronic) Receipt
Search/Exam
Jul 24, 2023
Filing of the translations of the claims
Search/Exam
Jul 24, 2023
French translation of claims
Search/Exam
Jul 24, 2023
German translation of the claims
Search/Exam
Jul 24, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 14, 2023
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Mar 14, 2023
Intention to grant (signatures)
Search/Exam
Mar 14, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 14, 2023
Feb 13, 2023
Document concerning representation
Search/Exam
Feb 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 6, 2022
Jul 25, 2022
(Electronic) Receipt
Search/Exam
Jul 25, 2022
Amended description with annotations
Search/Exam
Jul 25, 2022
Description
Search/Exam
Jul 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 25, 2022
Apr 11, 2022
Annex to the communication
Search/Exam
Apr 11, 2022
Communication from the Examining Division
Search/Exam
Sep 17, 2021
(Electronic) Receipt
Search/Exam
Sep 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 17, 2021
May 7, 2021
Annex to the communication
Search/Exam
May 7, 2021
Communication from the Examining Division
Search/Exam
Apr 30, 2021
Examination started
Search/Exam
Jun 3, 2020
May 28, 2020
Oct 2, 2019
(Electronic) Receipt
Search/Exam
Oct 2, 2019
Oct 2, 2019
Amended claims with annotations
Search/Exam
Oct 2, 2019
Amendments received before examination
Search/Exam
Oct 2, 2019
Letter accompanying subsequently filed items
Search/Exam
May 29, 2019
Mar 26, 2019
Mar 22, 2019
Communication to designated inventor
Search/Exam
Mar 22, 2019
Communication to designated inventor
Search/Exam
Mar 22, 2019
Communication to designated inventor
Search/Exam
Mar 19, 2019
Priority search results copy provided by EPO
Search/Exam
Mar 8, 2019
(Electronic) Receipt
Search/Exam
Mar 8, 2019
Request for entry into the European phase
Search/Exam
Mar 5, 2019
Jan 4, 2019
Information on entry into European phase
Search/Exam
Mar 12, 2018
Feb 22, 2018
Copy of the international search report
Search/Exam
Feb 22, 2018
Published international application - A1
Search/Exam
Nov 10, 2017
Nov 10, 2017
Nov 10, 2017
Sep 11, 2017
Aug 17, 2017
(Electronic) Receipt
PCTRO
Aug 17, 2017
Abstract
PCTRO
Aug 17, 2017
Claims
PCTRO
Aug 17, 2017
Description
PCTRO
Aug 17, 2017
Aug 17, 2017
Drawings
PCTRO
Aug 17, 2017
Aug 17, 2017