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The patent EP2931970 was granted to Fiberlean on Jun 29, 2022. The application was filed on Dec 9, 2013 under application number EP13805491A. 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 |
|---|---|---|---|
| WEIDMANN HOLDING | Apr 26, 2019 | RUTZ | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2012066308 |
| OPPOSITION | US4374702 |
| OPPOSITION | US6214163 |
| OPPOSITION | WO2010131016 |
| OPPOSITION | WO2011004300 |
| OPPOSITION | WO2012066308 |
| OPPOSITION | WO2012097446 |
| OPPOSITION | WO2014091212 |
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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Jun 2, 2022
Jun 2, 2022
May 27, 2022
May 20, 2022
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Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Feb 24, 2022
Nov 3, 2021
Refund of fees
Appeal
Oct 29, 2021
Oct 29, 2021
Oct 26, 2021
Oct 21, 2021
(Electronic) Receipt
Appeal
Oct 21, 2021
Oct 21, 2021
Oct 21, 2021
Withdrawal of an appeal
Appeal
Sep 1, 2021
Sep 1, 2021
Aug 27, 2021
(Electronic) Receipt
Appeal
Aug 27, 2021
Aug 27, 2021
Notice of appeal
Appeal
Jun 22, 2021
Jun 21, 2021
Jun 18, 2021
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Means of redress
OPPO
Jun 18, 2021
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Authorisation
OPPO
Jul 7, 2020
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Jun 29, 2020
Jun 26, 2020
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Aug 30, 2019
Aug 30, 2019
Aug 30, 2019
May 21, 2019
Refund of fees
OPPO
May 16, 2019
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Aug 13, 2018
Jul 5, 2018
Decision to grant a European patent
Search/Exam
Jun 21, 2018
Jun 21, 2018
Jun 21, 2018
Intention to grant (signatures)
Search/Exam
Jun 21, 2018
Text intended for grant (clean copy)
Search/Exam
Jun 21, 2018
Jun 14, 2018
Jun 8, 2018
Jun 5, 2018
(Electronic) Receipt
Search/Exam
Jun 5, 2018
Amended claims with annotations
Search/Exam
Jun 5, 2018
Claims
Search/Exam
Jun 5, 2018
French translation of claims
Search/Exam
Jun 5, 2018
German translation of the claims
Search/Exam
Jun 5, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 5, 2018
Mar 15, 2018
Mar 15, 2018
Mar 15, 2018
Intention to grant (signatures)
Search/Exam
Mar 15, 2018
Text intended for grant (clean copy)
Search/Exam
Mar 15, 2018
Dec 5, 2017
(Electronic) Receipt
Search/Exam
Dec 5, 2017
Amended claims with annotations
Search/Exam
Dec 5, 2017
Amended description with annotations
Search/Exam
Dec 5, 2017
Claims
Search/Exam
Dec 5, 2017
Description
Search/Exam
Dec 5, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 5, 2017
Sep 8, 2017
Sep 4, 2017
(Electronic) Receipt
Search/Exam
Sep 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 4, 2017
Jul 3, 2017
(Electronic) Receipt
Search/Exam
Jul 3, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2017
Jul 3, 2017
Jun 22, 2017
Annex to the communication
Search/Exam
Jun 22, 2017
Consultation by telephone/in person
Search/Exam
Jun 22, 2017
May 30, 2017
Annex to the communication
Search/Exam
May 30, 2017
Communication from the Examining Division
Search/Exam
May 15, 2017
Mar 3, 2017
(Electronic) Receipt
Search/Exam
Mar 3, 2017
Annexes in respect of a client data request
Search/Exam
Mar 3, 2017
Annexes in respect of a client data request
Search/Exam
Mar 3, 2017
Authorisation
Search/Exam
Mar 3, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 3, 2017
Sep 15, 2016
(Electronic) Receipt
Search/Exam
Sep 15, 2016
Amended description with annotations
Search/Exam
Sep 15, 2016
Description
Search/Exam
Sep 15, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2016
Jul 28, 2016
Jul 25, 2016
Jul 20, 2016
Jun 2, 2016
Annex to the communication
Search/Exam
Jun 2, 2016
Communication from the Examining Division
Search/Exam
May 27, 2016
Examination started
Search/Exam
May 11, 2016
Decision to allow further processing
Search/Exam
Apr 28, 2016
(Electronic) Receipt
Search/Exam
Apr 28, 2016
Apr 28, 2016
Amended claims with annotations
Search/Exam
Apr 28, 2016
Amendments received before examination
Search/Exam
Apr 28, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 4, 2016
Mar 4, 2016
Claim deemed abandoned
Search/Exam
Sep 23, 2015
Jul 17, 2015
Jul 15, 2015
Communication to designated inventor
Search/Exam
Jul 15, 2015
Communication to designated inventor
Search/Exam
Jul 15, 2015
Communication to designated inventor
Search/Exam
Jul 15, 2015
Communication to designated inventor
Search/Exam
Jul 15, 2015
Communication to designated inventor
Search/Exam
Jun 29, 2015
Apr 27, 2015
(Electronic) Receipt
Search/Exam
Apr 27, 2015
Request for entry into the European phase
Search/Exam
Apr 24, 2015
Information on entry into European phase
Search/Exam
Jul 7, 2014
Jun 19, 2014
Copy of the international search report
Search/Exam
Jun 19, 2014
Published international application - A1
Search/Exam
May 6, 2014
May 6, 2014
May 6, 2014
Dec 16, 2013
Abstract
PCTISA
Dec 16, 2013
Claims
PCTISA
Dec 16, 2013
Description
PCTISA