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The patent EP2520391 was granted to Klingelnberg on Jan 24, 2018. The application was filed on May 26, 2011 under application number EP11167703A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| PROFILATOR | Oct 19, 2018 | GRUNDMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE243514 |
| EXAMINATION | DE102009025945 |
| OPPOSITION | DE102009003601 |
| OPPOSITION | DE102009025945 |
| OPPOSITION | DE10258549 |
| OPPOSITION | DE1046445 |
| OPPOSITION | DE1527164 |
| OPPOSITION | DE4122460 |
| OPPOSITION | DE4132487 |
| OPPOSITION | US3264940 |
| SEARCH | DE102009003601 |
| SEARCH | DE4122460 |
| SEARCH | DE4132487 |
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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Means of redress
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Authorisation
OPPO
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Authorisation
OPPO
Mar 1, 2019
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Oct 25, 2018
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Feb 2, 2018
Jan 5, 2018
Decision to grant a European patent
Search/Exam
Dec 18, 2017
(Electronic) Receipt
Search/Exam
Dec 18, 2017
English translation of the claims
Search/Exam
Dec 18, 2017
Filing of the translations of the claims
Search/Exam
Dec 18, 2017
French translation of claims
Search/Exam
Dec 18, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 31, 2017
Aug 31, 2017
Aug 31, 2017
Intention to grant (signatures)
Search/Exam
Aug 31, 2017
Text intended for grant (clean copy)
Search/Exam
Aug 31, 2017
Nov 21, 2016
(Electronic) Receipt
Search/Exam
Nov 21, 2016
Amended claims with annotations
Search/Exam
Nov 21, 2016
Amended description with annotations
Search/Exam
Nov 21, 2016
Claims
Search/Exam
Nov 21, 2016
Description
Search/Exam
Nov 21, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 21, 2016
Aug 24, 2016
Annex to the communication
Search/Exam
Aug 24, 2016
Communication from the Examining Division
Search/Exam
Aug 17, 2016
Examination started
Search/Exam
Mar 31, 2015
Mar 25, 2015
Mar 6, 2013
(Electronic) Receipt
Search/Exam
Mar 6, 2013
Letter accompanying subsequently filed items
Search/Exam
Mar 6, 2013
Mar 4, 2013
Refund of fees
Search/Exam
Feb 27, 2013
Feb 13, 2013
(Electronic) Receipt
Search/Exam
Feb 13, 2013
Feb 13, 2013
Amended claims with annotations
Search/Exam
Feb 13, 2013
Feb 13, 2013
Amended description with annotations
Search/Exam
Feb 13, 2013
Amendments received before examination
Search/Exam
Feb 13, 2013
Letter accompanying subsequently filed items
Search/Exam
Nov 23, 2012
Letter concerning the priority
Search/Exam
Nov 23, 2012
Priority document
Search/Exam
Nov 12, 2012
Oct 15, 2012
Invitation to file priority document
Search/Exam
Oct 10, 2012
Notification of forthcoming publication
Search/Exam
Jul 10, 2012
Jul 10, 2012
European search opinion
Search/Exam
Jul 10, 2012
European search report
Search/Exam
Apr 30, 2012
Feb 9, 2012
(Electronic) Receipt
Search/Exam
Feb 9, 2012
Designation of inventor
Search/Exam
Feb 9, 2012
Letter concerning the inventor
Search/Exam
Jul 22, 2011
Deficiency in designation of inventor
Search/Exam
May 26, 2011
Abstract
Search/Exam
May 26, 2011
May 26, 2011
Claims
Search/Exam
May 26, 2011
Description
Search/Exam
May 26, 2011
Drawings
Search/Exam
May 26, 2011
Request for grant of a European patent
Search/Exam