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The patent EP2054778 was granted to Canon Kabushiki Kaisha on Mar 26, 2025. The application was originally filed on Nov 7, 2007 under application number EP07831774A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| NICKEL | May 29, 2019 | GRUNECKER PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1089133 |
| INTERNATIONAL-SEARCH-REPORT | EP1289214 |
| INTERNATIONAL-SEARCH-REPORT | JP2002040904 |
| INTERNATIONAL-SEARCH-REPORT | US2002015597 |
| INTERNATIONAL-SEARCH-REPORT | US2007121709 |
| OPPOSITION | EP1089133 |
| OPPOSITION | EP1289214 |
| OPPOSITION | JP2002040904 |
| OPPOSITION | JP2003248798 |
| OPPOSITION | US2002015597 |
| OPPOSITION | US2007121709 |
| OPPOSITION | US6631967 |
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 27, 2025
Feb 27, 2025
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OPPO
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OPPO
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Description
OPPO
Jan 31, 2023
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Oct 4, 2022
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Jul 15, 2022
Refund of fees
Appeal
Jul 13, 2022
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Apr 4, 2022
Apr 4, 2022
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Apr 1, 2022
Mar 31, 2022
(Electronic) Receipt
Appeal
Mar 31, 2022
Mar 31, 2022
Mar 14, 2022
(Electronic) Receipt
Appeal
Mar 14, 2022
Mar 14, 2022
Mar 14, 2022
Mar 1, 2022
Mar 1, 2022
Feb 14, 2022
Feb 14, 2022
Feb 11, 2022
(Electronic) Receipt
Appeal
Feb 11, 2022
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Feb 11, 2022
Feb 7, 2022
(Electronic) Receipt
Appeal
Feb 7, 2022
Feb 7, 2022
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Jan 25, 2022
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Jan 10, 2022
Jan 3, 2022
(Electronic) Receipt
Appeal
Jan 3, 2022
Jan 3, 2022
Reply to appeal
Appeal
Sep 17, 2021
Aug 24, 2021
Aug 19, 2021
(Electronic) Receipt
Appeal
Aug 19, 2021
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Description
Appeal
Aug 19, 2021
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Jun 11, 2021
(Electronic) Receipt
Appeal
Jun 11, 2021
Jun 11, 2021
Notice of appeal
Appeal
Apr 9, 2021
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Means of redress
OPPO
Apr 9, 2021
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Sep 10, 2018
Aug 2, 2018
Decision to grant a European patent
Search/Exam
Jul 20, 2018
(Electronic) Receipt
Search/Exam
Jul 20, 2018
French translation of claims
Search/Exam
Jul 20, 2018
German translation of the claims
Search/Exam
Jul 20, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 14, 2018
Mar 14, 2018
Mar 14, 2018
Intention to grant (signatures)
Search/Exam
Mar 14, 2018
Text intended for grant (clean copy)
Search/Exam
Mar 14, 2018
Dec 6, 2017
(Electronic) Receipt
Search/Exam
Dec 6, 2017
Amended claims with annotations
Search/Exam
Dec 6, 2017
Claims
Search/Exam
Dec 6, 2017
Description
Search/Exam
Dec 6, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 6, 2017
Aug 18, 2017
Annex to the communication
Search/Exam
Aug 18, 2017
Communication from the Examining Division
Search/Exam
Jun 1, 2017
(Electronic) Receipt
Search/Exam
Jun 1, 2017
Amended claims with annotations
Search/Exam
Jun 1, 2017
Claims
Search/Exam
Jun 1, 2017
Description
Search/Exam
Jun 1, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 1, 2017
Jan 31, 2017
Annex to the communication
Search/Exam
Jan 31, 2017
Communication from the Examining Division
Search/Exam
Jan 25, 2017
Examination started
Search/Exam
Oct 24, 2016
Apr 5, 2011
Submission concerning representation
Search/Exam
Jul 16, 2009
Refund of fees
Search/Exam
Jun 17, 2009
May 13, 2009
(Electronic) Receipt
Search/Exam
May 13, 2009
May 13, 2009
Amended claims with annotations
Search/Exam
May 13, 2009
Amendments received before examination
Search/Exam
May 13, 2009
Letter accompanying subsequently filed items
Search/Exam
Apr 8, 2009
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Mar 13, 2009
Matter concerning the application
Search/Exam
Jun 26, 2008
(Electronic) Receipt
Search/Exam
Jun 26, 2008
Request for entry into the European phase
Search/Exam
Jun 24, 2008
Jun 5, 2008
Copy of the international search report
Search/Exam
Jun 5, 2008
Published international application - A1
Search/Exam
Nov 29, 2007
Abstract
PCTISA
Nov 29, 2007
Claims
PCTISA
Nov 29, 2007
Description
PCTISA
Nov 29, 2007
Drawings
PCTISA