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The patent EP1731284 was granted to L & L Products on Aug 7, 2019. The application was filed on Jun 6, 2006 under application number EP06011591A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| SIKA TECHNOLOGY | May 6, 2020 | SIKA PATENT ATTORNEYS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US19550606882 |
| DESCRIPTION | US20040867835 |
| DESCRIPTION | US5575526 |
| DESCRIPTION | US5755486 |
| DESCRIPTION | US5766719 |
| DESCRIPTION | US5932680 |
| DESCRIPTION | US6131897 |
| EXAMINATION | DE3838655 |
| EXAMINATION | US2002088908 |
| EXAMINATION | US2004266898 |
| EXAMINATION | US5344208 |
| EXAMINATION | US5642914 |
| EXAMINATION | US5806915 |
| OPPOSITION | DE3838655 |
| OPPOSITION | JP2003063443 |
| OPPOSITION | US2002088908 |
| OPPOSITION | US2004070232 |
| OPPOSITION | US2004266898 |
| OPPOSITION | US2005081383 |
| OPPOSITION | US4671910 |
| OPPOSITION | US5344208 |
| OPPOSITION | US5642914 |
| OPPOSITION | US5766719 |
| OPPOSITION | US5806915 |
| OPPOSITION | US6368438 |
| OPPOSITION | US6382635 |
| OPPOSITION | WO0183206 |
| SEARCH | JP2003063443 |
| SEARCH | US2004070232 |
| SEARCH | US4671910 |
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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Dec 10, 2025
Dec 3, 2025
(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Aug 6, 2025
Aug 5, 2025
(Electronic) Receipt
Appeal
Aug 5, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jun 3, 2025
Authorisation
Appeal
Jun 3, 2025
Notice of appeal
Appeal
Jun 3, 2025
Notice of appeal
Appeal
Apr 9, 2025
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Means of redress
OPPO
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Authorisation
OPPO
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Appeal
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Appeal
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Appeal
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Authorisation
Appeal
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(Electronic) Receipt
Appeal
Feb 10, 2023
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(Electronic) Receipt
Appeal
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Oct 7, 2022
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Appeal
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Appeal
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Reply to appeal
Appeal
Mar 2, 2022
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(Electronic) Receipt
Appeal
Feb 23, 2022
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Dec 23, 2021
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(Electronic) Receipt
Appeal
Dec 16, 2021
(Electronic) Receipt
Appeal
Dec 16, 2021
Dec 16, 2021
Notice of appeal
Appeal
Oct 27, 2021
Oct 25, 2021
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Means of redress
OPPO
Oct 25, 2021
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Aug 19, 2019
Jul 11, 2019
Decision to grant a European patent
Search/Exam
Jun 25, 2019
(Electronic) Receipt
Search/Exam
Jun 25, 2019
Filing of the translations of the claims
Search/Exam
Jun 25, 2019
French translation of claims
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Jun 25, 2019
German translation of the claims
Search/Exam
Jun 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 17, 2019
Jun 17, 2019
Jun 17, 2019
Intention to grant (signatures)
Search/Exam
Jun 17, 2019
Text intended for grant (clean copy)
Search/Exam
Jun 17, 2019
May 27, 2019
Amended claims with annotations
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May 27, 2019
Claims
Search/Exam
May 27, 2019
May 23, 2019
Amended claims with annotations
Search/Exam
May 23, 2019
Claims
Search/Exam
May 23, 2019
Jan 17, 2019
Jan 17, 2019
Jan 17, 2019
Intention to grant (signatures)
Search/Exam
Jan 17, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 17, 2019
Nov 19, 2018
Submission concerning representation
Search/Exam
Sep 11, 2018
(Electronic) Receipt
Search/Exam
Sep 11, 2018
Amended claims with annotations
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Sep 11, 2018
Amended description with annotations
Search/Exam
Sep 11, 2018
Claims
Search/Exam
Sep 11, 2018
Description
Search/Exam
Sep 11, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2018
May 2, 2018
Annex to the communication
Search/Exam
May 2, 2018
Communication from the Examining Division
Search/Exam
Apr 20, 2016
Apr 8, 2016
(Electronic) Receipt
Search/Exam
Apr 8, 2016
Letter accompanying subsequently filed items
Search/Exam
Apr 8, 2016
Mar 14, 2016
(Electronic) Receipt
Search/Exam
Mar 14, 2016
Claims
Search/Exam
Mar 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 14, 2016
Jan 8, 2016
Jan 4, 2016
(Electronic) Receipt
Search/Exam
Jan 4, 2016
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2016
Sep 2, 2015
Annex to the communication
Search/Exam
Sep 2, 2015
Communication from the Examining Division
Search/Exam
Oct 8, 2012
(Electronic) Receipt
Search/Exam
Oct 8, 2012
Claims
Search/Exam
Oct 8, 2012
Letter accompanying subsequently filed items
Search/Exam
Oct 8, 2012
Aug 13, 2012
Aug 8, 2012
Aug 3, 2012
Mar 29, 2012
Annex to the communication
Search/Exam
Mar 29, 2012
Communication from the Examining Division
Search/Exam
Sep 19, 2011
Aug 29, 2011
Aug 26, 2011
Nov 10, 2009
Jan 29, 2009
Claims
Search/Exam
Jan 29, 2009
Jan 26, 2009
Claims
Search/Exam
Jan 26, 2009
Cover sheet for fax transmission
Search/Exam
Jan 26, 2009
Nov 14, 2008
Nov 14, 2008
Nov 10, 2008
Jul 17, 2008
Communication from the Examining Division
Search/Exam
Jun 2, 2008
Letter concerning fees and payments
Search/Exam
Feb 20, 2008
Feb 11, 2008
Dec 17, 2007
Nov 14, 2007
Nov 14, 2007
European search opinion
Search/Exam
Nov 14, 2007
European search report
Search/Exam
Nov 15, 2006
Notification of forthcoming publication
Search/Exam
Oct 17, 2006
Letter concerning the priority
Search/Exam
Oct 17, 2006
Priority document
Search/Exam
Sep 13, 2006
Sep 1, 2006
Modified abstract
Search/Exam
Jun 13, 2006
Abstract
Search/Exam
Jun 13, 2006
Claims
Search/Exam
Jun 13, 2006
Description
Search/Exam
Jun 13, 2006
Designation of inventor
Search/Exam
Jun 13, 2006
Drawings
Search/Exam
Jun 13, 2006
Matter concerning the application
Search/Exam
Jun 13, 2006
Payment of fees and costs
Search/Exam
Jun 13, 2006
Request for grant of a European patent
Search/Exam
Jun 6, 2006
Abstract
Search/Exam
Jun 6, 2006
Claims
Search/Exam
Jun 6, 2006
Description
Search/Exam
Jun 6, 2006
Designation of inventor
Search/Exam
Jun 6, 2006
Drawings
Search/Exam
Jun 6, 2006
Matter concerning the application
Search/Exam
Jun 6, 2006
Request for grant of a European patent
Search/Exam