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The patent EP2536546 was granted to SGL Automotive Carbon Fibers on Oct 25, 2017. The application was filed on Feb 3, 2011 under application number EP11703826A. 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 |
|---|---|---|---|
| SACHSISCHES TEXTILFORSCHUNGSINSTITUT EV STFI AN INSTITUT DER TECHNISCHEN UNIVERSITAT CHEMNITZ | Jul 16, 2018 | STEINIGER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE10151761 |
| DESCRIPTION | DE102008002846 |
| DESCRIPTION | DE102009023641 |
| DESCRIPTION | DE19739486 |
| DESCRIPTION | DE19845863 |
| DESCRIPTION | EP1696057 |
| DESCRIPTION | WO9409972 |
| INTERNATIONAL-SEARCH-REPORT | EP0721835 |
| INTERNATIONAL-SEARCH-REPORT | WO2006105682 |
| INTERNATIONAL-SEARCH-REPORT | WO9409972 |
| OPPOSITION | DE10151761 |
| OPPOSITION | DE102005048603 |
| OPPOSITION | DE102008002846 |
| OPPOSITION | DE10345953 |
| OPPOSITION | DE19739486 |
| OPPOSITION | DE19845863 |
| OPPOSITION | DE4337715 |
| OPPOSITION | EP0721835 |
| OPPOSITION | EP1595981 |
| OPPOSITION | EP1696057 |
| OPPOSITION | EP2036701 |
| OPPOSITION | WO2006105682 |
| OPPOSITION | WO9409972 |
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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Jul 9, 2020
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Means of redress
Search/Exam
Mar 12, 2020
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Claims
OPPO
Dec 3, 2019
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Jul 16, 2018
Jul 16, 2018
Nov 2, 2017
Sep 28, 2017
Decision to grant a European patent
Search/Exam
Sep 12, 2017
English translation of the claims
Search/Exam
Sep 12, 2017
Filing of the translations of the claims
Search/Exam
Sep 12, 2017
French translation of claims
Search/Exam
May 22, 2017
May 22, 2017
May 22, 2017
Intention to grant (signatures)
Search/Exam
May 22, 2017
Text intended for grant (clean copy)
Search/Exam
May 22, 2017
Mar 15, 2017
Refund of fees
Search/Exam
Dec 12, 2016
Cover sheet for fax transmission
Search/Exam
Dec 12, 2016
Sep 22, 2016
Sep 16, 2016
May 31, 2016
Annex to the communication
Search/Exam
May 31, 2016
Communication from the Examining Division
Search/Exam
Dec 16, 2015
Amended claims with annotations
Search/Exam
Dec 16, 2015
Claims
Search/Exam
Dec 16, 2015
Oct 21, 2015
Oct 15, 2015
Jun 18, 2015
Advice of delivery
Search/Exam
Jun 17, 2015
Annex to the communication
Search/Exam
Jun 17, 2015
Communication from the Examining Division
Search/Exam
Jun 10, 2015
Examination started
Search/Exam
Jun 28, 2013
Jun 21, 2013
Priority search results
Search/Exam
Jun 21, 2013
May 31, 2013
Mar 15, 2013
Mar 15, 2013
Amended claims with annotations
Search/Exam
Mar 15, 2013
Amendments received before examination
Search/Exam
Nov 28, 2012
Oct 5, 2012
Oct 1, 2012
Communication to designated inventor
Search/Exam
Oct 1, 2012
Communication to designated inventor
Search/Exam
Oct 1, 2012
Communication to designated inventor
Search/Exam
Sep 27, 2012
Sep 27, 2012
Sep 5, 2012
(Electronic) Receipt
Search/Exam
Sep 5, 2012
Request for entry into the European phase
Search/Exam
Sep 4, 2012
Aug 7, 2012
Aug 7, 2012
Notification of the recording of a change
Search/Exam
Jul 26, 2012
Jul 26, 2012
Notification of the recording of a change
Search/Exam
Jun 29, 2012
Information on entry into European phase
Search/Exam
May 3, 2012
Published international application - A4
Search/Exam
Sep 14, 2011
Aug 25, 2011
Copy of the international search report
Search/Exam
Aug 25, 2011
Copy of the international search report
Search/Exam
Aug 25, 2011
Published international application - A1
Search/Exam
Jun 10, 2011
Jun 10, 2011
Jun 10, 2011
Feb 5, 2011
Abstract
PCTRO
Feb 5, 2011
Claims
PCTRO
Feb 5, 2011
Description
PCTRO
Feb 5, 2011
Drawings
PCTRO