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The patent EP3253422 was granted to Castus Sterile Systems on Sep 4, 2019. The application was filed on Dec 18, 2015 under application number EP15813435A. 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 |
|---|---|---|---|
| ATEC PHARMATECHNIK | May 13, 2020 | WEIDNER STERN JESCHKE | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE4409659 |
| EXAMINATION | DE9421818U |
| EXAMINATION | EP1769889 |
| EXAMINATION | EP2502636 |
| EXAMINATION | WO0061199 |
| EXAMINATION | WO0074735 |
| EXAMINATION | WO2010040383 |
| INTERNATIONAL-SEARCH-REPORT | DE4409659 |
| INTERNATIONAL-SEARCH-REPORT | DE9421818U |
| INTERNATIONAL-SEARCH-REPORT | EP1769889 |
| INTERNATIONAL-SEARCH-REPORT | EP2502636 |
| INTERNATIONAL-SEARCH-REPORT | WO0061199 |
| INTERNATIONAL-SEARCH-REPORT | WO0074735 |
| INTERNATIONAL-SEARCH-REPORT | WO2010040383 |
| OPPOSITION | CN103302050 |
| OPPOSITION | CN201033323Y |
| OPPOSITION | DE4409659 |
| OPPOSITION | DE9421818U |
| OPPOSITION | EP0460344 |
| OPPOSITION | EP1769889 |
| OPPOSITION | EP2502636 |
| OPPOSITION | WO0061199 |
| OPPOSITION | WO0074735 |
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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Mar 21, 2022
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Search/Exam
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Sep 16, 2019
Aug 8, 2019
Decision to grant a European patent
Search/Exam
Jul 25, 2019
(Electronic) Receipt
Search/Exam
Jul 25, 2019
English translation of the claims
Search/Exam
Jul 25, 2019
Filing of the translations of the claims
Search/Exam
Jul 25, 2019
French translation of claims
Search/Exam
Jul 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 26, 2019
Mar 26, 2019
Mar 26, 2019
Intention to grant (signatures)
Search/Exam
Mar 26, 2019
Text intended for grant (clean copy)
Search/Exam
Mar 26, 2019
Mar 7, 2019
Examination started
Search/Exam
Jan 24, 2019
Decision to allow further processing
Search/Exam
Oct 1, 2018
Decision to allow further processing
Search/Exam
Sep 12, 2018
(Electronic) Receipt
Search/Exam
Sep 12, 2018
Sep 12, 2018
Amended claims with annotations
Search/Exam
Sep 12, 2018
Sep 12, 2018
Amended description with annotations
Search/Exam
Sep 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2018
Request for further processing
Search/Exam
Jul 16, 2018
May 14, 2018
Submission concerning representation
Search/Exam
Nov 28, 2017
Nov 21, 2017
Priority search results copy provided by EPO
Search/Exam
Nov 15, 2017
Nov 15, 2017
Request for further processing allowed
Search/Exam
Oct 24, 2017
(Electronic) Receipt
Search/Exam
Oct 24, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 24, 2017
Request for further processing
Search/Exam
Oct 12, 2017
Note on telephone consultation
Search/Exam
Sep 4, 2017
(Electronic) Receipt
Search/Exam
Sep 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 4, 2017
Matter concerning the application
Search/Exam
Aug 24, 2017
Jul 4, 2017
May 2, 2017
Information on entry into European phase
Search/Exam
Jul 12, 2016
Jun 23, 2016
Copy of the international search report
Search/Exam
Jun 23, 2016
Copy of the international search report
Search/Exam
Jun 23, 2016
Published international application - A1
Search/Exam
Mar 9, 2016
ISR: cited documents
PCTISA
Mar 9, 2016
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Dec 21, 2015
Dec 18, 2015
(Electronic) Receipt
PCTRO
Dec 18, 2015
Abstract
PCTRO
Dec 18, 2015
Claims
PCTRO
Dec 18, 2015
Description
PCTRO
Dec 18, 2015
Dec 18, 2015
Drawings
PCTRO
Dec 18, 2015
Dec 18, 2015