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The patent EP1981355 was granted to Hills PET Nutrition on Mar 14, 2018. The application was filed on Jan 23, 2007 under application number EP07717361A. 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 |
|---|---|---|---|
| GEVERS PATENTS | Dec 13, 2018 | GEVERS & ORES | ADMISSIBLE |
| NESTLE | Dec 10, 2018 | D YOUNG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1323255 |
| DESCRIPTION | EP1410722 |
| DESCRIPTION | US2002197275 |
| DESCRIPTION | US6248390 |
| DESCRIPTION | WO02076235 |
| DESCRIPTION | WO2005053422 |
| INTERNATIONAL-SEARCH-REPORT | EP1323355 |
| INTERNATIONAL-SEARCH-REPORT | EP1410722 |
| INTERNATIONAL-SEARCH-REPORT | US2002197275 |
| INTERNATIONAL-SEARCH-REPORT | US6248390 |
| INTERNATIONAL-SEARCH-REPORT | WO02076235 |
| INTERNATIONAL-SEARCH-REPORT | WO2005053422 |
| OPPOSITION | EP0898900 |
| OPPOSITION | US2002197275 |
| OPPOSITION | US2005112217 |
| OPPOSITION | US6248390 |
| OPPOSITION | WO0035303 |
| OPPOSITION | WO02076235 |
| OPPOSITION | WO03053165 |
| OPPOSITION | WO9843493 |
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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Description
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Aug 7, 2024
Refund of fees
Appeal
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(Electronic) Receipt
Appeal
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Withdrawal of an appeal
Appeal
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Appeal
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Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Feb 1, 2018
(Electronic) Receipt
Search/Exam
Feb 1, 2018
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Annex to the communication
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Aug 24, 2016
Communication from the Examining Division
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Mar 17, 2016
(Electronic) Receipt
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Mar 17, 2016
Amended claims with annotations
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Mar 17, 2016
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Mar 17, 2016
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Mar 17, 2016
Letter accompanying subsequently filed items
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Mar 17, 2016
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Annex to the communication
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Dec 21, 2015
Communication from the Examining Division
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(Electronic) Receipt
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Dec 9, 2014
Amended claims with annotations
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Dec 9, 2014
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Dec 9, 2014
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Search/Exam
Dec 9, 2014
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Dec 9, 2014
Letter accompanying subsequently filed items
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Dec 9, 2014
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Annex to the communication
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Aug 12, 2014
Communication from the Examining Division
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Apr 14, 2010
(Electronic) Receipt
Search/Exam
Apr 14, 2010
Claims
Search/Exam
Apr 14, 2010
Description
Search/Exam
Apr 14, 2010
Letter accompanying subsequently filed items
Search/Exam
Apr 14, 2010
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Annex to the communication
Search/Exam
Dec 9, 2009
Communication from the Examining Division
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Letter which had not been notified
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(Electronic) Receipt
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Aug 21, 2008
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Request for entry into the European phase
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Jul 29, 2008
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Information on entry into European phase
Search/Exam
Jan 17, 2008
Copy of the international search report
Search/Exam
Jan 17, 2008
Aug 21, 2007
Aug 2, 2007
Published international application - A2
Search/Exam
Mar 15, 2007
Abstract
PCTISA
Mar 15, 2007
Claims
PCTISA
Mar 15, 2007
Description
PCTISA