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The patent EP2371335 was granted to Covidien LP on May 12, 2021. The application was filed on Oct 14, 2003 under application number EP11172433A. 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 |
|---|---|---|---|
| PAUL HARTMANN | Feb 11, 2022 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0136900 |
| DESCRIPTION | US4211227 |
| DESCRIPTION | US4643180 |
| DESCRIPTION | US4643181 |
| DESCRIPTION | US4655756 |
| DESCRIPTION | US4675347 |
| DESCRIPTION | US4678704 |
| DESCRIPTION | US4837079 |
| DESCRIPTION | US5098417 |
| DESCRIPTION | US5141803 |
| DESCRIPTION | US5156843 |
| DESCRIPTION | US5498416 |
| DESCRIPTION | US5700742 |
| DESCRIPTION | US5707736 |
| DESCRIPTION | US5817325 |
| DESCRIPTION | US5849311 |
| DESCRIPTION | US5856248 |
| DESCRIPTION | US5869073 |
| DESCRIPTION | US5886048 |
| DESCRIPTION | US5985931 |
| DESCRIPTION | US5990174 |
| DESCRIPTION | US5993840 |
| DESCRIPTION | US6017561 |
| DESCRIPTION | US6160196 |
| DESCRIPTION | US6180584 |
| DESCRIPTION | US6235302 |
| DESCRIPTION | US6369289 |
| OPPOSITION | CA2274209 |
| OPPOSITION | DE3537627 |
| OPPOSITION | EP0136900 |
| OPPOSITION | EP0531096 |
| OPPOSITION | EP0594034 |
| OPPOSITION | EP0841957 |
| OPPOSITION | EP1555980 |
| OPPOSITION | GB1167249 |
| OPPOSITION | GB2132939 |
| OPPOSITION | GB2228682 |
| OPPOSITION | GB2321216 |
| OPPOSITION | US4211227 |
| OPPOSITION | US4643181 |
| OPPOSITION | WO0203899 |
| OPPOSITION | WO9607783 |
| SEARCH | DE29723320U |
| SEARCH | EP0531096 |
| SEARCH | GB2132939 |
| SEARCH | GB2321216 |
| SEARCH | US4214582 |
| SEARCH | US4363322 |
| SEARCH | WO0078883 |
| SEARCH | WO0145615 |
| SEARCH | WO9607783 |
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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Description
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Document concerning representation
Search/Exam
Jul 12, 2022
Letter accompanying subsequently filed items
Search/Exam
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May 26, 2021
Apr 15, 2021
Decision to grant a European patent
Search/Exam
Apr 1, 2021
(Electronic) Receipt
Search/Exam
Apr 1, 2021
French translation of claims
Search/Exam
Apr 1, 2021
German translation of the claims
Search/Exam
Apr 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 4, 2020
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Intention to grant (signatures)
Search/Exam
Dec 4, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 4, 2020
Oct 15, 2020
(Electronic) Receipt
Search/Exam
Oct 15, 2020
Amended claims with annotations
Search/Exam
Oct 15, 2020
Amended description with annotations
Search/Exam
Oct 15, 2020
Claims
Search/Exam
Oct 15, 2020
Description
Search/Exam
Oct 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 15, 2020
Aug 11, 2020
Annex to the communication
Search/Exam
Aug 11, 2020
Communication from the Examining Division
Search/Exam
Jun 25, 2020
(Electronic) Receipt
Search/Exam
Jun 25, 2020
Amended claims with annotations
Search/Exam
Jun 25, 2020
Amended description with annotations
Search/Exam
Jun 25, 2020
Claims
Search/Exam
Jun 25, 2020
Description
Search/Exam
Jun 25, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 25, 2020
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Mar 3, 2020
Annex to the communication
Search/Exam
Mar 3, 2020
Communication from the Examining Division
Search/Exam
Jul 30, 2019
Jul 17, 2019
(Electronic) Receipt
Search/Exam
Jul 17, 2019
Enquiry as to the processing of the file
Search/Exam
Jul 17, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 12, 2018
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Nov 14, 2017
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Aug 17, 2016
Annex to the communication
Search/Exam
Aug 17, 2016
Aug 10, 2016
Examination started
Search/Exam
Jul 14, 2014
Jul 14, 2014
Amended claims with annotations
Search/Exam
Jul 14, 2014
Amendments received before examination
Search/Exam
Jul 14, 2014
Amendments received before examination
Search/Exam
Jul 14, 2014
Payment of fees and costs
Search/Exam
Jan 20, 2014
Jan 2, 2014
Refund of fees
Search/Exam
Dec 13, 2013
Dec 13, 2013
European search opinion
Search/Exam
Dec 13, 2013
European search report
Search/Exam
Nov 27, 2013
Search started
Search/Exam
Nov 13, 2012
Nov 7, 2012
Nov 6, 2012
Sep 7, 2011
Notification of forthcoming publication
Search/Exam
Jul 1, 2011
Abstract
Search/Exam
Jul 1, 2011
Jul 1, 2011
Annex
Search/Exam
Jul 1, 2011
Annex
Search/Exam
Jul 1, 2011
Claims
Search/Exam
Jul 1, 2011
Description
Search/Exam
Jul 1, 2011
Designation of inventor
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Jul 1, 2011
Drawings
Search/Exam
Jul 1, 2011
Request for grant of a European patent
Search/Exam
May 28, 2004