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The patent EP2885462 was granted to Danmarks Tekniske Universitet on Nov 11, 2020. The application was filed on Jun 28, 2013 under application number EP13734023A. 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 |
|---|---|---|---|
| DYWIDAG SYSTEMS | Oct 10, 2018 | WEICKMANN & WEICKMANN PARTMBB | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | GB2335248 |
| INTERNATIONAL-SEARCH-REPORT | US4059129 |
| INTERNATIONAL-SEARCH-REPORT | WO0061433 |
| INTERNATIONAL-SEARCH-REPORT | WO9402744 |
| OPPOSITION | CN2379540Y |
| OPPOSITION | DE1684900 |
| OPPOSITION | JP2011174243 |
| OPPOSITION | US4059129 |
| OPPOSITION | WO0114644 |
| OTHER | US4180369 |
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 15, 2020
Oct 9, 2020
Jun 2, 2020
May 8, 2020
May 8, 2020
May 8, 2020
Claims
OPPO
May 8, 2020
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Dec 3, 2019
Nov 27, 2019
Nov 27, 2019
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Means of redress
OPPO
Aug 13, 2019
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Claims
OPPO
Aug 13, 2019
Description
OPPO
Aug 13, 2019
Aug 13, 2019
Jul 15, 2019
Jul 15, 2019
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Jan 26, 2018
Dec 14, 2017
Decision to grant a European patent
Search/Exam
Dec 4, 2017
Nov 29, 2017
(Electronic) Receipt
Search/Exam
Nov 29, 2017
Filing of the translations of the claims
Search/Exam
Nov 29, 2017
French translation of claims
Search/Exam
Nov 29, 2017
German translation of the claims
Search/Exam
Nov 29, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 20, 2017
Jul 20, 2017
Jul 20, 2017
Intention to grant (signatures)
Search/Exam
Jul 20, 2017
Text intended for grant
Search/Exam
Sep 27, 2016
(Electronic) Receipt
Search/Exam
Sep 27, 2016
Amended claims with annotations
Search/Exam
Sep 27, 2016
Claims
Search/Exam
Sep 27, 2016
Description
Search/Exam
Sep 27, 2016
Description
Search/Exam
Sep 27, 2016
Drawings
Search/Exam
Sep 27, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 27, 2016
May 17, 2016
Annex to the communication
Search/Exam
May 17, 2016
Communication from the Examining Division
Search/Exam
May 9, 2016
Examination started
Search/Exam
Nov 18, 2015
(Electronic) Receipt
Search/Exam
Nov 18, 2015
Nov 18, 2015
Amended claims with annotations
Search/Exam
Nov 18, 2015
Amended description with annotations
Search/Exam
Nov 18, 2015
Amended description with annotations
Search/Exam
Nov 18, 2015
Amendments received before examination
Search/Exam
Nov 18, 2015
Letter accompanying subsequently filed items
Search/Exam
May 28, 2015
May 11, 2015
May 6, 2015
Communication to designated inventor
Search/Exam
May 6, 2015
Communication to designated inventor
Search/Exam
May 1, 2015
Priority search results copy provided by EPO
Search/Exam
Jan 12, 2015
Jan 8, 2015
(Electronic) Receipt
Search/Exam
Jan 8, 2015
Request for entry into the European phase
Search/Exam
Jan 7, 2015
Dec 18, 2014
Observations by third parties
Search/Exam
Dec 18, 2014
Dec 5, 2014
Dec 5, 2014
Dec 5, 2014
Dec 5, 2014
Dec 5, 2014
Nov 11, 2014
Written opinion
PCT2
Nov 11, 2014
Nov 11, 2014
Nov 7, 2014
Information on entry into European phase
Search/Exam
Oct 14, 2014
Oct 14, 2014
Oct 14, 2014
Oct 14, 2014
Oct 6, 2014
Written opinion
PCT2
Jul 16, 2014
Jul 9, 2014
Jul 3, 2014
Jun 4, 2014
Notification of election of EPO
Search/Exam
May 15, 2014
May 14, 2014
May 14, 2014
May 14, 2014
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May 13, 2014
May 12, 2014
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May 2, 2014
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May 2, 2014
PCT demand form
PCT2
Jan 21, 2014
Jan 3, 2014
Copy of the international search report
Search/Exam
Jan 3, 2014
Published international application - A1
Search/Exam
Oct 17, 2013
Oct 17, 2013
Oct 17, 2013
Oct 14, 2013
Oct 14, 2013
Oct 14, 2013
Oct 14, 2013
Jun 28, 2013
(Electronic) Receipt
PCTRO
Jun 28, 2013
Abstract
PCTRO
Jun 28, 2013
Claims
PCTRO
Jun 28, 2013
Description
PCTRO
Jun 28, 2013
Drawings
PCTRO
Jun 28, 2013