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The patent EP2993591 was granted to Sipco on Jun 26, 2019. The application was filed on Aug 9, 2001 under application number EP15191463A. 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 |
|---|---|---|---|
| JACKSON | Mar 26, 2020 | DEHNS | ADMISSIBLE |
| SPRANGER | Mar 26, 2020 | KUHNEN & WACKER PATENT UND RECHTSANWALTSBURO PARTG MBB | ADMISSIBLE |
| WIENHAUSEN | Mar 25, 2020 | RAFFAY & FLECK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20000704150 |
| DESCRIPTION | US20010811076 |
| DESCRIPTION | US4697166 |
| DESCRIPTION | US5471190 |
| OPPOSITION | US4792946 |
| OPPOSITION | US5479400 |
| OPPOSITION | US5542431 |
| OPPOSITION | US5874903 |
| OPPOSITION | US5987011 |
| OPPOSITION | US6028522 |
| OPPOSITION | US6069588 |
| OPPOSITION | US6218953 |
| OPPOSITION | WO0021053 |
| OPPOSITION | WO0048376 |
| OPPOSITION | WO0055825 |
| OPPOSITION | WO0135190 |
| OPPOSITION | WO9702677 |
| OPPOSITION | WO9810393 |
| OPPOSITION | WO9913676 |
| OPPOSITION | WO9945510 |
| SEARCH | WO0021053 |
| SEARCH | WO0055825 |
| SEARCH | WO0135190 |
| SEARCH | WO9810393 |
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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May 19, 2021
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Means of redress
OPPO
Feb 4, 2021
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Jul 8, 2019
May 31, 2019
Decision to grant a European patent
Search/Exam
May 16, 2019
(Electronic) Receipt
Search/Exam
May 16, 2019
Filing of the translations of the claims
Search/Exam
May 16, 2019
French translation of claims
Search/Exam
May 16, 2019
German translation of the claims
Search/Exam
May 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 23, 2019
Apr 23, 2019
Apr 23, 2019
Intention to grant (signatures)
Search/Exam
Apr 23, 2019
Text intended for grant (clean copy)
Search/Exam
Apr 23, 2019
Mar 26, 2019
Examination started
Search/Exam
Jan 16, 2019
(Electronic) Receipt
Search/Exam
Jan 16, 2019
Jan 16, 2019
Amended claims with annotations
Search/Exam
Jan 16, 2019
Amendments received before examination
Search/Exam
Jan 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 8, 2018
Sep 19, 2018
Sep 6, 2018
(Electronic) Receipt
Search/Exam
Sep 6, 2018
Enquiry as to the processing of the file
Search/Exam
Sep 6, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 7, 2016
(Electronic) Receipt
Search/Exam
Sep 7, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 7, 2016
Reply to Written Opinion prepared by the EPO
Search/Exam
Mar 14, 2016
Feb 10, 2016
Notification of forthcoming publication
Search/Exam
Feb 1, 2016
Feb 1, 2016
European search opinion
Search/Exam
Feb 1, 2016
European search report
Search/Exam
Feb 1, 2016
Information on Search Strategy
Search/Exam
Jan 19, 2016
Search started
Search/Exam
Dec 18, 2015
Communication to designated inventor
Search/Exam
Oct 26, 2015
Abstract
Search/Exam
Oct 26, 2015
Oct 26, 2015
Claims
Search/Exam
Oct 26, 2015
Description
Search/Exam
Oct 26, 2015
Designation of inventor
Search/Exam
Oct 26, 2015
Drawings
Search/Exam
Oct 26, 2015
Request for grant of a European patent
Search/Exam
Jun 24, 2003