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The patent EP3443915 was granted to Boston Scientific on Jan 31, 2024. The application was filed on Sep 30, 2004 under application number EP18194180A. 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 |
|---|---|---|---|
| COOK MEDICAL | Jan 3, 2022 | LEACH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP0738501 |
| OPPOSITION | JP2000287981 |
| OPPOSITION | JPS60103946 |
| OPPOSITION | US2002045909 |
| OPPOSITION | US2002128667 |
| OPPOSITION | US2002133178 |
| OPPOSITION | US2002151916 |
| OPPOSITION | US3958576 |
| OPPOSITION | US5478350 |
| OPPOSITION | US5569274 |
| OPPOSITION | US5749881 |
| OPPOSITION | US5766189 |
| OPPOSITION | US5967997 |
| OPPOSITION | WO03030746 |
| OPPOSITION | WO03034928 |
| OPPOSITION | WO9608208 |
| OPPOSITION | WO9915089 |
| SEARCH | US2002045909 |
| SEARCH | US2002133178 |
| SEARCH | WO03030746 |
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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Decision to grant a European patent
Search/Exam
Feb 19, 2021
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(Electronic) Receipt
Search/Exam
Feb 11, 2021
Filing of the translations of the claims
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Feb 11, 2021
French translation of claims
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German translation of the claims
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Feb 11, 2021
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
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Oct 1, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 1, 2020
Jun 29, 2020
(Electronic) Receipt
Search/Exam
Jun 29, 2020
Amended description with annotations
Search/Exam
Jun 29, 2020
Description
Search/Exam
Jun 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 29, 2020
Feb 17, 2020
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Intention to grant (signatures)
Search/Exam
Feb 17, 2020
Text intended for grant (clean copy)
Search/Exam
Feb 17, 2020
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Examination started
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Aug 28, 2019
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Amended claims with annotations
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Aug 28, 2019
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Amended description with annotations
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Aug 28, 2019
Amendments received before examination
Search/Exam
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European search opinion
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Apr 12, 2019
European search report
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Apr 12, 2019
Information on Search Strategy
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Mar 4, 2019
Feb 26, 2019
Letter which had not been notified
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Jan 30, 2019
Refund of fees
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Jan 23, 2019
Notification of forthcoming publication
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Jan 4, 2019
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Information on Search Strategy
Search/Exam
Jan 4, 2019
Partial European search report
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Jan 4, 2019
Dec 10, 2018
Search started
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Nov 6, 2018
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Nov 6, 2018
Communication to designated inventor
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Oct 4, 2018
Refund of fees
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Sep 26, 2018
Sep 13, 2018
Abstract
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Sep 13, 2018
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Claims
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Sep 13, 2018
Description
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Sep 13, 2018
Designation of inventor
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Sep 13, 2018
Drawings
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Sep 13, 2018
Matter concerning the application
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Sep 13, 2018
Request for grant of a European patent
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May 4, 2005
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