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The patent EP1698413 was granted to Dowa on May 23, 2018. The application was filed on Feb 24, 2006 under application number EP06003855A. 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 |
|---|---|---|---|
| PATENTANWALTE ISENBRUCK BOSL HORSCHLER PARTG MBB | Feb 22, 2019 | HOLLAH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | JP2005036309 |
| OPPOSITION | US2004173666 |
| OPPOSITION | WO9724224 |
| SEARCH | EP1503388 |
| SEARCH | JPH11319538 |
| SEARCH | US2004173666 |
| SEARCH | WO2005009652 |
| SEARCH | WO9724224 |
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.
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May 3, 2019
Submission concerning representation
Search/Exam
Apr 5, 2019
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Mar 13, 2019
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Jun 4, 2018
Apr 26, 2018
Decision to grant a European patent
Search/Exam
Mar 26, 2018
(Electronic) Receipt
Search/Exam
Mar 26, 2018
Filing of the translations of the claims
Search/Exam
Mar 26, 2018
French translation of claims
Search/Exam
Mar 26, 2018
German translation of the claims
Search/Exam
Mar 26, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 28, 2017
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Intention to grant (signatures)
Search/Exam
Nov 28, 2017
Text intended for grant (clean copy)
Search/Exam
Nov 28, 2017
Jun 21, 2017
Amended claims with annotations
Search/Exam
Jun 21, 2017
Amended description with annotations
Search/Exam
Jun 21, 2017
Claims
Search/Exam
Jun 21, 2017
Description
Search/Exam
Jun 21, 2017
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Dec 12, 2016
Annex to the communication
Search/Exam
Dec 12, 2016
Communication from the Examining Division
Search/Exam
Dec 5, 2016
Examination started
Search/Exam
Jun 7, 2016
May 30, 2016
Jan 15, 2008
Amended claims with annotations
Search/Exam
Jan 15, 2008
Claims
Search/Exam
Jan 15, 2008
Dec 6, 2007
Final instructions (loss of partial rights)
Search/Exam
Nov 21, 2007
Nov 5, 2007
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Sep 27, 2007
Request for transfer of rights
Search/Exam
Aug 14, 2007
Jul 6, 2007
Communication from the Examining Division
Search/Exam
May 2, 2007
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Sep 18, 2006
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European search opinion
Search/Exam
Aug 11, 2006
European search report
Search/Exam
Aug 9, 2006
Notification of forthcoming publication
Search/Exam
May 30, 2006
Apr 20, 2006
Feb 24, 2006
Abstract
Search/Exam
Feb 24, 2006
Claims
Search/Exam
Feb 24, 2006
Description
Search/Exam
Feb 24, 2006
Designation of inventor
Search/Exam
Feb 24, 2006
Drawings
Search/Exam
Feb 24, 2006
Non-scannable object
Search/Exam
Feb 24, 2006
Request for grant of a European patent
Search/Exam