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The patent EP2528534 was granted to Sialo Lite on Jul 3, 2019. The application was filed on Jan 25, 2011 under application number EP11713524A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| WOODWELDING | Apr 1, 2020 | FREI PATENT ATTORNEYS | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE4321785 |
| DESCRIPTION | US2002177102 |
| DESCRIPTION | US2003124486 |
| DESCRIPTION | US2008215010 |
| DESCRIPTION | US2009208907 |
| DESCRIPTION | US4671768 |
| DESCRIPTION | US6042380 |
| DESCRIPTION | US6799970 |
| DESCRIPTION | US6840770 |
| DESCRIPTION | US7510397 |
| DESCRIPTION | WO2007005614 |
| DESCRIPTION | WO2009024107 |
| INTERNATIONAL-SEARCH-REPORT | EP1195146 |
| INTERNATIONAL-SEARCH-REPORT | JPH07222752 |
| INTERNATIONAL-SEARCH-REPORT | US2006084034 |
| INTERNATIONAL-SEARCH-REPORT | US2008215010 |
| INTERNATIONAL-SEARCH-REPORT | WO2007005614 |
| OPPOSITION | US2001012606 |
| OPPOSITION | US2004147929 |
| OPPOSITION | US2005015059 |
| OPPOSITION | US2006036253 |
| OPPOSITION | US2007162024 |
| OPPOSITION | US2007225695 |
| OPPOSITION | US2008215010 |
| OPPOSITION | US4671768 |
| OPPOSITION | US5871484 |
| OPPOSITION | WO0211630 |
| OPPOSITION | WO2007005614 |
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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Feb 8, 2023
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Means of redress
OPPO
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Description
OPPO
Nov 19, 2021
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Jul 15, 2019
Jun 6, 2019
Decision to grant a European patent
Search/Exam
May 23, 2019
(Electronic) Receipt
Search/Exam
May 23, 2019
Filing of the translations of the claims
Search/Exam
May 23, 2019
French translation of claims
Search/Exam
May 23, 2019
German translation of the claims
Search/Exam
May 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 14, 2019
Jan 14, 2019
Jan 14, 2019
Intention to grant (signatures)
Search/Exam
Jan 14, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 14, 2019
Sep 14, 2018
(Electronic) Receipt
Search/Exam
Sep 14, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2018
Sep 7, 2018
(Electronic) Receipt
Search/Exam
Sep 7, 2018
Amended description with annotations
Search/Exam
Sep 7, 2018
Description
Search/Exam
Sep 7, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 7, 2018
Aug 20, 2018
Aug 20, 2018
Aug 14, 2018
(Electronic) Receipt
Search/Exam
Aug 14, 2018
Authorisation
Search/Exam
Aug 14, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 14, 2018
Jul 5, 2018
Annex to the communication
Search/Exam
Jul 5, 2018
Communication from the Examining Division
Search/Exam
May 4, 2018
(Electronic) Receipt
Search/Exam
May 4, 2018
Amended claims with annotations
Search/Exam
May 4, 2018
Amended description with annotations
Search/Exam
May 4, 2018
Claims
Search/Exam
May 4, 2018
Description
Search/Exam
May 4, 2018
Letter accompanying subsequently filed items
Search/Exam
May 4, 2018
Mar 8, 2018
Annex to the communication
Search/Exam
Mar 8, 2018
Communication from the Examining Division
Search/Exam
Dec 12, 2017
(Electronic) Receipt
Search/Exam
Dec 12, 2017
Amended claims with annotations
Search/Exam
Dec 12, 2017
Amended description with annotations
Search/Exam
Dec 12, 2017
Claims
Search/Exam
Dec 12, 2017
Description
Search/Exam
Dec 12, 2017
Drawings
Search/Exam
Dec 12, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 12, 2017
Aug 25, 2017
Annex to the communication
Search/Exam
Aug 25, 2017
Communication from the Examining Division
Search/Exam
May 15, 2017
(Electronic) Receipt
Search/Exam
May 15, 2017
Amended claims with annotations
Search/Exam
May 15, 2017
Amended description with annotations
Search/Exam
May 15, 2017
Claims
Search/Exam
May 15, 2017
Description
Search/Exam
May 15, 2017
Letter accompanying subsequently filed items
Search/Exam
May 15, 2017
Jan 18, 2017
Annex to the communication
Search/Exam
Jan 18, 2017
Communication from the Examining Division
Search/Exam
Jan 10, 2017
Examination started
Search/Exam
Oct 11, 2016
Jun 3, 2015
May 27, 2015
Submission concerning representation
Search/Exam
Feb 11, 2015
Refund of fees
Search/Exam
Mar 10, 2014
Nov 7, 2012
Oct 12, 2012
Oct 6, 2012
Priority search results copy provided by EPO
Search/Exam
Sep 11, 2012
Communication to designated inventor
Search/Exam
Sep 11, 2012
Communication to designated inventor
Search/Exam
Sep 11, 2012
Communication to designated inventor
Search/Exam
Sep 11, 2012
Communication to designated inventor
Search/Exam
Aug 17, 2012
(Electronic) Receipt
Search/Exam
Aug 17, 2012
Aug 17, 2012
Aug 17, 2012
Payment of fees and costs
Search/Exam
Aug 17, 2012
Request for entry into the European phase
Search/Exam
Aug 15, 2012
Jun 11, 2012
Information on entry into European phase
Search/Exam
Aug 23, 2011
Aug 23, 2011
Aug 4, 2011
Copy of the international search report
Search/Exam
Aug 4, 2011
Published international application - A1
Search/Exam
Jun 15, 2011
Jun 15, 2011
Jun 15, 2011
Apr 6, 2011
Mar 30, 2011
Abstract
PCTISA
Mar 30, 2011
Claims
PCTISA
Mar 30, 2011
Description
PCTISA
Mar 30, 2011
Drawings
PCTISA
Mar 30, 2011