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The patent EP3100991 was granted to Xella Baustoffe on Sep 13, 2017. The application was filed on May 20, 2014 under application number EP16181093A. 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 |
|---|---|---|---|
| BUNDESVERBAND PORENBETONINDUSTRIE EV | Jun 13, 2018 | WISCHMEYER | ADMISSIBLE |
| HH DEUTSCHLAND | Jun 13, 2018 | RAFFAY & FLECK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN101905964 |
| DESCRIPTION | DE10041368 |
| DESCRIPTION | DE102005014704 |
| DESCRIPTION | DE202008017703U |
| DESCRIPTION | EP1892226 |
| OPPOSITION | CN101905964 |
| OPPOSITION | DD298372 |
| OPPOSITION | DE10041368 |
| OPPOSITION | DE10066270 |
| OPPOSITION | DE102005005259 |
| OPPOSITION | DE102005014704 |
| OPPOSITION | DE102006045091 |
| OPPOSITION | DE102006046311 |
| OPPOSITION | DE102010005361 |
| OPPOSITION | DE102010013667 |
| OPPOSITION | DE1671263 |
| OPPOSITION | DE19915149 |
| OPPOSITION | DE202008017703U |
| OPPOSITION | DE2744365 |
| OPPOSITION | DE3633471 |
| OPPOSITION | DE660373 |
| OPPOSITION | DE889438 |
| OPPOSITION | DE923007 |
| OPPOSITION | EP1151966 |
| OPPOSITION | EP2371783 |
| OPPOSITION | EP2599750 |
| OPPOSITION | JP2001058884 |
| OPPOSITION | JP2001302367 |
| OPPOSITION | JPS5874553 |
| OPPOSITION | WO2006134080 |
| OPPOSITION | WO2009121635 |
| OTHER | EP2824086 |
| SEARCH | CN101905964 |
| SEARCH | DE10041368 |
| SEARCH | DE10066270 |
| SEARCH | DE102005005259 |
| SEARCH | DE102005014704 |
| SEARCH | DE102010005361 |
| SEARCH | DE2744365 |
| SEARCH | EP2371783 |
| SEARCH | JP2001058884 |
| SEARCH | JP2001302367 |
| SEARCH | WO2006134080 |
| SEARCH | WO2009121635 |
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 6, 2022
Jul 5, 2022
Advice of delivery
Appeal
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Advice of delivery
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Jul 5, 2022
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Refund of fees
Search/Exam
Jun 27, 2022
Advice of delivery
Appeal
Jun 8, 2022
Advice of delivery
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
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May 20, 2022
(Electronic) Receipt
Appeal
May 20, 2022
Annex
Appeal
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Advice of delivery
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May 12, 2022
(Electronic) Receipt
Appeal
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May 4, 2022
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Apr 4, 2022
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Feb 23, 2022
(Electronic) Receipt
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
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Advice of delivery
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(Electronic) Receipt
Appeal
Oct 13, 2020
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Claims
Appeal
Oct 13, 2020
Claims
Appeal
Oct 13, 2020
Oct 13, 2020
Reply to appeal
Appeal
Aug 26, 2020
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Aug 21, 2020
(Electronic) Receipt
Appeal
Aug 21, 2020
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Reply to appeal
Appeal
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(Electronic) Receipt
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Appeal
May 29, 2020
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Apr 14, 2020
(Electronic) Receipt
Appeal
Apr 14, 2020
Advice of delivery
Appeal
Apr 14, 2020
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Apr 7, 2020
(Electronic) Receipt
Appeal
Apr 7, 2020
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Notice of appeal
Appeal
Mar 30, 2020
(Electronic) Receipt
Appeal
Mar 30, 2020
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Notice of appeal
Appeal
Feb 4, 2020
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Means of redress
OPPO
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OPPO
Oct 4, 2019
Claims
OPPO
Oct 4, 2019
Claims
OPPO
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Authorisation
OPPO
Jul 5, 2018
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Sep 14, 2017
Aug 18, 2017
Decision to grant a European patent
Search/Exam
Jul 7, 2017
(Electronic) Receipt
Search/Exam
Jul 7, 2017
English translation of the claims
Search/Exam
Jul 7, 2017
Filing of the translations of the claims
Search/Exam
Jul 7, 2017
French translation of claims
Search/Exam
Jul 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Apr 7, 2017
Apr 7, 2017
Apr 4, 2017
Mar 30, 2017
Annex
Search/Exam
Mar 30, 2017
Observations by third parties
Search/Exam
Mar 21, 2017
Mar 21, 2017
Mar 21, 2017
Intention to grant (signatures)
Search/Exam
Mar 21, 2017
Text intended for grant (clean copy)
Search/Exam
Mar 21, 2017
Mar 8, 2017
Examination started
Search/Exam
Feb 17, 2017
Feb 17, 2017
Feb 15, 2017
Observations by third parties
Search/Exam
Feb 13, 2017
Observations by third parties
Search/Exam
Feb 7, 2017
Matter concerning the application
Search/Exam
Feb 7, 2017
Priority search results
Search/Exam
Feb 7, 2017
Dec 21, 2016
Dec 21, 2016
Refund of fees
Search/Exam
Dec 12, 2016
Dec 8, 2016
(Electronic) Receipt
Search/Exam
Dec 8, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 8, 2016
Reply to Written Opinion prepared by the EPO
Search/Exam
Nov 21, 2016
Communication to designated inventor
Search/Exam
Nov 9, 2016
Notification of forthcoming publication
Search/Exam
Nov 3, 2016
Letter concerning the inventor
Search/Exam
Oct 26, 2016
Refund of fees
Search/Exam
Oct 24, 2016
Oct 24, 2016
European search opinion
Search/Exam
Oct 24, 2016
European search report
Search/Exam
Oct 24, 2016
Information on Search Strategy
Search/Exam
Oct 14, 2016
Oct 11, 2016
Letter which had not been notified
Search/Exam
Oct 11, 2016
Search started
Search/Exam
Sep 16, 2016
Communication to designated inventor
Search/Exam
Sep 16, 2016
Communication to designated inventor
Search/Exam
Jul 26, 2016
Claims
Search/Exam
Jul 26, 2016
Description
Search/Exam
Jul 26, 2016
Letter concerning search matters
Search/Exam
Jul 25, 2016
Abstract
Search/Exam
Jul 25, 2016
Jul 25, 2016
Claims
Search/Exam
Jul 25, 2016
Description
Search/Exam
Jul 25, 2016
Designation of inventor
Search/Exam
Jul 25, 2016
Drawings
Search/Exam
Jul 25, 2016
Request for grant of a European patent
Search/Exam
Jun 16, 2014
Priority document
Search/Exam