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The patent EP2550123 was granted to Klenk on Nov 22, 2017. The application was originally filed on Mar 7, 2011 under application number EP11710422A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE19735024 |
| EXAMINATION | DE29803261U |
| EXAMINATION | JPS55150905 |
| EXAMINATION | US5944462 |
| EXAMINATION | WO9921674 |
| INTERNATIONAL-SEARCH-REPORT | CN101524768 |
| INTERNATIONAL-SEARCH-REPORT | DE102009033942 |
| INTERNATIONAL-SEARCH-REPORT | DE102009049087 |
| INTERNATIONAL-SEARCH-REPORT | DE20304580U |
| INTERNATIONAL-SEARCH-REPORT | FR1274316 |
| INTERNATIONAL-SEARCH-REPORT | FR2827204 |
| INTERNATIONAL-SEARCH-REPORT | JP2009039811 |
| INTERNATIONAL-SEARCH-REPORT | US2009087275 |
| INTERNATIONAL-SEARCH-REPORT | US4810136 |
| INTERNATIONAL-SEARCH-REPORT | US7665935 |
| INTERNATIONAL-SEARCH-REPORT | WO2011006587 |
| INTERNATIONAL-SEARCH-REPORT | WO2011038896 |
| OPPOSITION | DE102006022572 |
| OPPOSITION | DE20209768U |
| OPPOSITION | DE20219754U |
| OPPOSITION | DE29803261U |
| OPPOSITION | EP0454114 |
| OPPOSITION | JP2007075942 |
| OPPOSITION | JPS63283809 |
| OPPOSITION | US3667857 |
| OPPOSITION | US3913196 |
| OPPOSITION | US4589310 |
| OPPOSITION | US5636948 |
| OPPOSITION | US6652203 |
| OPPOSITION | WO2004082874 |
| OPPOSITION | WO2008013725 |
| OPPOSITION | WO9921674 |
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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Oct 7, 2019
Oct 7, 2019
Oct 1, 2019
Jul 23, 2019
Jul 22, 2019
Jun 27, 2019
Jun 25, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Means of redress
OPPO
Sep 4, 2018
Sep 4, 2018
Aug 27, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Aug 21, 2018
Dec 1, 2017
Oct 26, 2017
Decision to grant a European patent
Search/Exam
Sep 11, 2017
English translation of the claims
Search/Exam
Sep 11, 2017
Filing of the translations of the claims
Search/Exam
Sep 11, 2017
French translation of claims
Search/Exam
Sep 11, 2017
Payment of fees and costs
Search/Exam
Sep 11, 2017
Payment of fees and costs
Search/Exam
Jun 26, 2017
Jun 26, 2017
Jun 26, 2017
Intention to grant (signatures)
Search/Exam
Jun 26, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 26, 2017
Mar 9, 2017
Payment of fees and costs
Search/Exam
Jan 30, 2017
Amended claims with annotations
Search/Exam
Jan 30, 2017
Claims
Search/Exam
Jan 30, 2017
Oct 21, 2016
Annex to the communication
Search/Exam
Oct 21, 2016
Communication from the Examining Division
Search/Exam
Mar 11, 2016
Payment of fees and costs
Search/Exam
Dec 2, 2015
(Electronic) Receipt
Search/Exam
Dec 2, 2015
Amended claims with annotations
Search/Exam
Dec 2, 2015
Claims
Search/Exam
Dec 2, 2015
Description
Search/Exam
Dec 2, 2015
Letter accompanying subsequently filed items
Search/Exam
Dec 2, 2015
Sep 11, 2015
Sep 10, 2015
Sep 10, 2015
Sep 10, 2015
Sep 7, 2015
Sep 7, 2015
Sep 3, 2015
Submission concerning representation
Search/Exam
Sep 3, 2015
Submission concerning representation
Search/Exam
Sep 1, 2015
Aug 26, 2015
Submission concerning representation
Search/Exam
May 27, 2015
Annex to the communication
Search/Exam
May 27, 2015
Communication from the Examining Division
Search/Exam
May 20, 2015
Examination started
Search/Exam
Mar 25, 2015
Payment of fees and costs
Search/Exam
Jun 18, 2014
Jun 10, 2014
Oct 28, 2013
Priority search results
Search/Exam
Oct 28, 2013
Oct 25, 2013
Priority search results
Search/Exam
Oct 25, 2013
Priority search results
Search/Exam
Oct 25, 2013
Oct 25, 2013
Oct 10, 2013
Mar 20, 2013
Feb 21, 2013
Jan 21, 2013
Communication to designated inventor
Search/Exam
Jan 21, 2013
Communication to designated inventor
Search/Exam
Jan 14, 2013
Letter concerning the inventor
Search/Exam
Jan 4, 2013
Dec 3, 2012
Dec 3, 2012
Nov 26, 2012
Letter which had not been notified
Search/Exam
Nov 26, 2012
Letter which had not been notified
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Nov 6, 2012
Communication to designated inventor
Search/Exam
Oct 25, 2012
(Electronic) Receipt
Search/Exam
Oct 25, 2012
Oct 25, 2012
Amended claims with annotations
Search/Exam
Oct 25, 2012
Amendments received before examination
Search/Exam
Oct 25, 2012
Priority search results
Search/Exam
Oct 25, 2012
Request for entry into the European phase
Search/Exam
Oct 10, 2012
Aug 3, 2012
Information on entry into European phase
Search/Exam
Oct 17, 2011
Sep 29, 2011
Copy of the international search report
Search/Exam
Sep 29, 2011
Copy of the international search report
Search/Exam
Sep 29, 2011
Published international application - A1
Search/Exam
Apr 28, 2011
Apr 28, 2011
Apr 28, 2011
Mar 7, 2011
Abstract
PCTRO
Mar 7, 2011
Claims
PCTRO
Mar 7, 2011
Description
PCTRO
Mar 7, 2011
Drawings
PCTRO
Mar 7, 2011