The weekly litigation news digest is live. Subscribe now
The patent EP2895437 was granted to Lhoist Recherche ET Developpement on Aug 2, 2023. The application was filed on Sep 12, 2013 under application number EP13759780A. 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 |
|---|---|---|---|
| SCHAEFER KALK | Mar 13, 2019 | MAI BESIER | ADMISSIBLE |
| CARMEUSE RESEARCH AND TECHNOLOGY | Mar 12, 2019 | AWA BENELUX | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN201316654Y |
| DESCRIPTION | DE2714858 |
| DESCRIPTION | DE4447321 |
| DESCRIPTION | EP0943590 |
| DESCRIPTION | EP1039964 |
| DESCRIPTION | EP1039965 |
| DESCRIPTION | JP2007031212 |
| DESCRIPTION | SU1186248 |
| DESCRIPTION | US2004258612 |
| DESCRIPTION | WO2005101448 |
| DESCRIPTION | WO9623728 |
| INTERNATIONAL-SEARCH-REPORT | EP0943590 |
| INTERNATIONAL-SEARCH-REPORT | US2004258612 |
| INTERNATIONAL-SEARCH-REPORT | WO2005014483 |
| OPPOSITION | DE19900021 |
| OPPOSITION | EP1077199 |
| OPPOSITION | JP2001220185 |
| OPPOSITION | JP2004345915 |
| OPPOSITION | JP2007031212 |
| OPPOSITION | JP2008110908 |
| OPPOSITION | US2006275203 |
| OPPOSITION | US6451281 |
| OPPOSITION | WO02092701 |
| OPPOSITION | WO2005014483 |
| OPPOSITION | WO9951524 |
| OPPOSITION | WO9951525 |
| OTHER | WO2020094607 |
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
Get instant alerts for new documents
Jul 6, 2023
Jul 6, 2023
Jul 6, 2023
Jun 30, 2023
Jun 28, 2023
Jun 28, 2023
Jun 28, 2023
Jun 28, 2023
Jun 28, 2023
Mar 29, 2023
Refund of fees
Search/Exam
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 23, 2023
Mar 22, 2023
(Electronic) Receipt
Appeal
Mar 22, 2023
Mar 22, 2023
Mar 22, 2023
Mar 22, 2023
Mar 22, 2023
Withdrawal of an appeal
Appeal
Mar 21, 2023
Mar 2, 2023
(Electronic) Receipt
Appeal
Mar 2, 2023
Mar 2, 2023
Notice of appeal
Appeal
Jan 9, 2023
Dec 27, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Means of redress
OPPO
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Nov 10, 2022
Oct 18, 2022
Oct 18, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 5, 2022
Oct 5, 2022
Sep 29, 2022
Sep 29, 2022
Sep 29, 2022
Sep 29, 2022
Sep 19, 2022
Sep 19, 2022
Sep 19, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Authorisation
OPPO
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Aug 12, 2022
Aug 12, 2022
Aug 9, 2022
Aug 9, 2022
Aug 9, 2022
Aug 9, 2022
Aug 9, 2022
Aug 3, 2022
Aug 3, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Mar 22, 2022
Mar 21, 2022
Mar 21, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Nov 30, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 22, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 8, 2021
Oct 7, 2021
Sep 8, 2021
Sep 8, 2021
Sep 3, 2021
Sep 3, 2021
Authorisation
OPPO
Sep 3, 2021
Sep 3, 2021
Aug 19, 2021
Aug 19, 2021
Aug 16, 2021
Aug 16, 2021
Aug 6, 2021
Aug 5, 2021
Aug 4, 2021
Aug 4, 2021
Jul 29, 2021
Jul 29, 2021
Jul 29, 2021
Jul 28, 2021
Jul 28, 2021
Jul 23, 2021
Jul 1, 2021
Jul 1, 2021
Jun 28, 2021
Jun 28, 2021
Jun 28, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
May 10, 2021
Apr 30, 2021
Dec 22, 2020
Dec 22, 2020
Dec 15, 2020
Dec 15, 2020
Dec 15, 2020
Dec 7, 2020
Dec 7, 2020
Nov 30, 2020
Nov 9, 2020
Nov 9, 2020
Nov 6, 2020
Nov 3, 2020
Oct 29, 2020
Oct 29, 2020
Oct 29, 2020
Oct 29, 2020
Oct 29, 2020
Oct 29, 2020
Oct 29, 2020
Sep 15, 2020
Sep 1, 2020
Aug 19, 2020
Aug 19, 2020
Aug 19, 2020
Aug 14, 2020
Aug 14, 2020
Aug 14, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Aug 7, 2020
Aug 6, 2020
Aug 6, 2020
Jul 27, 2020
Jul 27, 2020
Jul 23, 2020
Jul 23, 2020
Jul 22, 2020
Jul 22, 2020
Jul 22, 2020
Jul 16, 2020
Jul 13, 2020
Jul 13, 2020
Jul 13, 2020
Jun 30, 2020
Jun 30, 2020
Jun 24, 2020
Jun 19, 2020
Jun 19, 2020
Jun 19, 2020
Jun 17, 2020
Jun 17, 2020
Jun 17, 2020
Jun 17, 2020
Jan 28, 2020
Jan 24, 2020
Dec 12, 2019
Dec 12, 2019
Dec 12, 2019
Dec 9, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Dec 4, 2019
Sep 2, 2019
Sep 2, 2019
Aug 23, 2019
Aug 23, 2019
Aug 12, 2019
Aug 12, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
May 16, 2019
Apr 19, 2019
Mar 28, 2019
Mar 28, 2019
Mar 28, 2019
Mar 20, 2019
Mar 18, 2019
Mar 18, 2019
Mar 15, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 13, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Mar 12, 2019
Jun 25, 2018
May 17, 2018
Decision to grant a European patent
Search/Exam
May 4, 2018
(Electronic) Receipt
Search/Exam
May 4, 2018
English translation of the claims
Search/Exam
May 4, 2018
Filing of the translations of the claims
Search/Exam
May 4, 2018
German translation of the claims
Search/Exam
May 4, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 3, 2018
Jan 3, 2018
Jan 3, 2018
Intention to grant (signatures)
Search/Exam
Jan 3, 2018
Text intended for grant (clean copy)
Search/Exam
Jan 3, 2018
Dec 11, 2017
Examination started
Search/Exam
May 12, 2017
Apr 27, 2017
(Electronic) Receipt
Search/Exam
Apr 27, 2017
Enquiry as to the processing of the file
Search/Exam
Apr 27, 2017
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2017
Deficiencies in an enquiry
Search/Exam
Apr 12, 2017
(Electronic) Receipt
Search/Exam
Apr 12, 2017
Apr 12, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2015
(Electronic) Receipt
Search/Exam
Nov 18, 2015
Nov 18, 2015
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2015
Matter concerning the application
Search/Exam
Nov 4, 2015
Refund of fees
Search/Exam
Oct 22, 2015
(Electronic) Receipt
Search/Exam
Oct 22, 2015
Oct 22, 2015
Amended claims with annotations
Search/Exam
Oct 22, 2015
Oct 22, 2015
Amended description with annotations
Search/Exam
Oct 22, 2015
Amendments received before examination
Search/Exam
Oct 22, 2015
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2015
Apr 21, 2015
Apr 17, 2015
Communication to designated inventor
Search/Exam
Apr 17, 2015
Communication to designated inventor
Search/Exam
Apr 14, 2015
Priority search results copy provided by EPO
Search/Exam
Mar 31, 2015
Feb 11, 2015
Notice on debiting of fees
Search/Exam
Feb 6, 2015
Note on telephone consultation
Search/Exam
Jan 23, 2015
Information on entry into European phase
Search/Exam
Dec 22, 2014
(Electronic) Receipt
Search/Exam
Dec 22, 2014
Request for entry into the European phase
Search/Exam
Apr 9, 2014
Apr 9, 2014
Mar 20, 2014
Copy of the international search report
Search/Exam
Mar 20, 2014
Mar 20, 2014
Published international application - A1
Search/Exam
Jan 8, 2014
Jan 8, 2014
Jan 8, 2014
Sep 12, 2013
(Electronic) Receipt
PCTRO
Sep 12, 2013
Abstract
PCTRO
Sep 12, 2013
Claims
PCTRO
Sep 12, 2013
Description
PCTRO
Sep 12, 2013
Drawings
PCTRO