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The patent EP2528728 was granted to SIG Combibloc Services on Dec 18, 2019. The application was filed on Jan 26, 2011 under application number EP11702578A. 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 |
|---|---|---|---|
| TETRA LAVAL & FINANCE | Sep 17, 2020 | BECK GREENER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO9009926 |
| INTERNATIONAL-SEARCH-REPORT | EP1232856 |
| INTERNATIONAL-SEARCH-REPORT | US2005037162 |
| INTERNATIONAL-SEARCH-REPORT | WO02090206 |
| INTERNATIONAL-SEARCH-REPORT | WO9322131 |
| OPPOSITION | EP1239856 |
| OPPOSITION | EP1507661 |
| OPPOSITION | EP1819604 |
| OPPOSITION | JPH11300913 |
| OPPOSITION | US2005037162 |
| OPPOSITION | US3200557 |
| OPPOSITION | US4838468 |
| OPPOSITION | US5809743 |
| OPPOSITION | US6357203 |
| OPPOSITION | WO0020279 |
| OPPOSITION | WO0200522 |
| OPPOSITION | WO0224544 |
| OPPOSITION | WO2008012395 |
| OPPOSITION | WO9009926 |
| OPPOSITION | WO9302131 |
| OPPOSITION | WO9826994 |
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 8, 2025
Dec 8, 2025
Nov 26, 2025
Nov 20, 2025
(Electronic) Receipt
Appeal
Nov 20, 2025
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(Electronic) Receipt
Appeal
Nov 11, 2025
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Sep 29, 2025
Sep 26, 2025
(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Sep 23, 2025
(Electronic) Receipt
Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
Mar 26, 2025
(Electronic) Receipt
Appeal
Mar 26, 2025
Notice of appeal
Appeal
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Nov 21, 2019
Decision to grant a European patent
Search/Exam
Nov 6, 2019
Nov 6, 2019
Nov 6, 2019
Intention to grant (signatures)
Search/Exam
Nov 6, 2019
Text intended for grant (clean copy)
Search/Exam
Nov 6, 2019
Aug 23, 2019
(Electronic) Receipt
Search/Exam
Aug 23, 2019
Annex
Search/Exam
Aug 23, 2019
Annex
Search/Exam
Aug 23, 2019
Description
Search/Exam
Aug 23, 2019
French translation of claims
Search/Exam
Aug 23, 2019
German translation of the claims
Search/Exam
Aug 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2019
Jul 4, 2019
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Apr 25, 2019
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Intention to grant (signatures)
Search/Exam
Apr 25, 2019
Text intended for grant (clean copy)
Search/Exam
Apr 25, 2019
Oct 5, 2017
(Electronic) Receipt
Search/Exam
Oct 5, 2017
Amended claims with annotations
Search/Exam
Oct 5, 2017
Claims
Search/Exam
Oct 5, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 5, 2017
Jun 8, 2017
Annex to the communication
Search/Exam
Jun 8, 2017
Communication from the Examining Division
Search/Exam
Jan 12, 2017
(Electronic) Receipt
Search/Exam
Jan 12, 2017
Amended description with annotations
Search/Exam
Jan 12, 2017
Description
Search/Exam
Jan 12, 2017
Letter accompanying subsequently filed items
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Jan 12, 2017
Sep 2, 2016
Annex to the communication
Search/Exam
Sep 2, 2016
Communication from the Examining Division
Search/Exam
May 12, 2016
(Electronic) Receipt
Search/Exam
May 12, 2016
Claims
Search/Exam
May 12, 2016
Claims
Search/Exam
May 12, 2016
Letter accompanying subsequently filed items
Search/Exam
May 12, 2016
Mar 24, 2016
Mar 18, 2016
(Electronic) Receipt
Search/Exam
Mar 18, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 18, 2016
Nov 17, 2015
Annex to the communication
Search/Exam
Nov 17, 2015
Communication from the Examining Division
Search/Exam
Oct 20, 2015
Examination started
Search/Exam
May 7, 2015
Apr 29, 2015
Apr 22, 2014
Apr 10, 2014
Submission concerning representation
Search/Exam
Apr 10, 2014
Submission concerning representation
Search/Exam
Jun 4, 2013
Priority search results
Search/Exam
Jun 4, 2013
May 17, 2013
Priority search results
Search/Exam
May 17, 2013
May 8, 2013
Apr 3, 2013
Refund of fees
Search/Exam
Mar 26, 2013
Mar 26, 2013
Mar 26, 2013
Amendments received before examination
Search/Exam
Mar 20, 2013
Mar 20, 2013
Mar 20, 2013
Amendments received before examination
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Nov 7, 2012
Sep 21, 2012
Letter concerning fees and payments
Search/Exam
Sep 20, 2012
Sep 4, 2012
Communication to designated inventor
Search/Exam
Sep 4, 2012
Communication to designated inventor
Search/Exam
Sep 4, 2012
Communication to designated inventor
Search/Exam
Sep 4, 2012
Communication to designated inventor
Search/Exam
Sep 4, 2012
Communication to designated inventor
Search/Exam
Sep 4, 2012
Communication to designated inventor
Search/Exam
Sep 4, 2012
Notice on debiting of fees
Search/Exam
Aug 27, 2012
Request for entry into the European phase
Search/Exam
Aug 22, 2012
Payment of fees and costs
Search/Exam
Aug 22, 2012
Priority search results
Search/Exam
Aug 22, 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 4, 2011
Copy of the international search report
Search/Exam
Aug 4, 2011
Published international application - A1
Search/Exam
Jul 5, 2011
Jul 5, 2011
Jul 5, 2011
Feb 3, 2011
Abstract
PCTRO
Feb 3, 2011
Claims
PCTRO
Feb 3, 2011
Description
PCTRO
Feb 3, 2011
Drawings
PCTRO