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The patent EP2216055 was granted to Bayer on Jun 18, 2025. The application was filed on Aug 26, 2003 under application number EP10163581A. 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 |
|---|---|---|---|
| BECTON | Apr 26, 2018 | HOFFMANN EITLE | - |
| BIOTRONIK | Apr 26, 2018 | ARTH | - |
| COOK MEDICAL | Apr 26, 2018 | WILLIAMS POWELL | - |
| HEMOTEQ | Apr 25, 2018 | ARTH | - |
| BOSTON SCIENTIFIC | Apr 24, 2018 | PETERREINS SCHLEY | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US5102402 |
| DESCRIPTION | WO0124866 |
| EXAMINATION | DE10115740 |
| EXAMINATION | WO02076509 |
| OPPOSITION | EP0519063 |
| OPPOSITION | EP1140273 |
| OPPOSITION | EP1539266 |
| OPPOSITION | EP1666070 |
| OPPOSITION | US2001037140 |
| OPPOSITION | US2002098278 |
| OPPOSITION | US5102402 |
| OPPOSITION | US5147302 |
| OPPOSITION | US5209799 |
| OPPOSITION | US5318587 |
| OPPOSITION | US5342307 |
| OPPOSITION | US5350361 |
| OPPOSITION | US5370614 |
| OPPOSITION | US5456666 |
| OPPOSITION | US5496276 |
| OPPOSITION | US5681522 |
| OPPOSITION | US5716981 |
| OPPOSITION | US5738901 |
| OPPOSITION | US5916596 |
| OPPOSITION | US5977163 |
| OPPOSITION | US5980972 |
| OPPOSITION | US6013055 |
| OPPOSITION | US6013092 |
| OPPOSITION | US6033380 |
| OPPOSITION | US6039721 |
| OPPOSITION | US6071285 |
| OPPOSITION | US6146358 |
| OPPOSITION | US6364856 |
| OPPOSITION | WO0021584 |
| OPPOSITION | WO0032238 |
| OPPOSITION | WO0032267 |
| OPPOSITION | WO0044414 |
| OPPOSITION | WO0045744 |
| OPPOSITION | WO0124866 |
| OPPOSITION | WO0149268 |
| OPPOSITION | WO02076509 |
| OPPOSITION | WO2004006976 |
| OPPOSITION | WO2004028582 |
| OPPOSITION | WO9211890 |
| OPPOSITION | WO9423787 |
| OPPOSITION | WO9625176 |
| OPPOSITION | WO9814174 |
| OPPOSITION | WO9830249 |
| OPPOSITION | WO9836784 |
| OPPOSITION | WO9908729 |
| OPPOSITION | WO9925336 |
| OTHER | US5370613 |
| OTHER | WO0044414 |
| OTHER | WO9908729 |
| SEARCH | DE4225553 |
| SEARCH | US2002123505 |
| SEARCH | US5370614 |
| SEARCH | WO0044414 |
| SEARCH | WO0045744 |
| SEARCH | WO2004006976 |
| SEARCH | WO9211890 |
| SEARCH | WO9215282 |
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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May 4, 2017
Letter accompanying subsequently filed items
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May 4, 2017
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Jan 4, 2017
Communication from the Examining Division
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(Electronic) Receipt
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Amended claims with annotations
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Sep 23, 2016
Claims
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Sep 23, 2016
Description
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Letter accompanying subsequently filed items
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Aug 2, 2016
Communication from the Examining Division
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Jul 8, 2016
Jun 24, 2016
Observations by third parties
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Jun 24, 2016
Patent document filed by a Third party
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Jun 24, 2016
Patent document filed by a Third party
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Annex to the communication
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Jun 21, 2016
Communication from the Examining Division
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(Electronic) Receipt
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Amended claims with annotations
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Mar 14, 2016
Annex
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Mar 14, 2016
Claims
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Mar 14, 2016
Description
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Mar 14, 2016
Letter accompanying subsequently filed items
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Mar 14, 2016
Nov 9, 2015
Annex to the communication
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Nov 9, 2015
Communication from the Examining Division
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Jul 24, 2015
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Amended claims with annotations
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Jul 24, 2015
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Jul 24, 2015
Description
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Jul 24, 2015
Letter accompanying subsequently filed items
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Jul 24, 2015
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Apr 7, 2015
Annex to the communication
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Apr 7, 2015
Communication from the Examining Division
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Mar 27, 2015
Examination started
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Mar 11, 2015
Mar 4, 2015
Submission concerning representation
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Dec 10, 2014
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Dec 1, 2014
Letter accompanying subsequently filed items
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Oct 28, 2014
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(Electronic) Receipt
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Oct 10, 2014
Letter accompanying subsequently filed items
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Oct 10, 2014
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Nov 14, 2012
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Reply to Written Opinion prepared by the EPO
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Sep 8, 2010
Refund of fees
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Aug 16, 2010
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Refund of fees
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Aug 4, 2010
Letter which had not been notified
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Jul 27, 2010
Letter concerning the inventor
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Jul 16, 2010
Notification of forthcoming publication
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Jul 12, 2010
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European search opinion
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European search report
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May 21, 2010
Abstract
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May 21, 2010
Description
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May 21, 2010
Designation of inventor
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May 21, 2010
Designation of inventor
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May 21, 2010
Letter concerning search matters
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May 21, 2010
Request for grant of a European patent
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May 21, 2010
Submission concerning representation
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May 14, 2004