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The patent EP3709817 was granted to Hills PET Nutrition on Oct 22, 2025. The application was filed on Nov 17, 2017 under application number EP17818344A. 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 |
|---|---|---|---|
| NESTLE | Aug 10, 2023 | PLOUGMANN VINGTOFT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | CA2849218 |
| EXAMINATION | CN102159197 |
| EXAMINATION | US2008220126 |
| EXAMINATION | US2015139920 |
| EXAMINATION | US2016249646 |
| EXAMINATION | WO03075670 |
| EXAMINATION | WO2008149177 |
| EXAMINATION | WO2011014363 |
| EXAMINATION | WO2017050666 |
| INTERNATIONAL-SEARCH-REPORT | US2013274335 |
| INTERNATIONAL-SEARCH-REPORT | US2014343146 |
| INTERNATIONAL-SEARCH-REPORT | US2017135974 |
| INTERNATIONAL-SEARCH-REPORT | WO2015013678 |
| INTERNATIONAL-SEARCH-REPORT | WO2017117091 |
| OPPOSITION | EP3458046 |
| OPPOSITION | US8388999 |
| OPPOSITION | US8637495 |
| OPPOSITION | WO2015069215 |
| OPPOSITION | WO2017117091 |
| OPPOSITION | WO2017199223 |
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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Decision to grant a European patent
Search/Exam
Oct 7, 2022
(Electronic) Receipt
Search/Exam
Oct 7, 2022
French translation of claims
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Oct 7, 2022
German translation of the claims
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Oct 7, 2022
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Jun 7, 2022
Text intended for grant (clean copy)
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(Electronic) Receipt
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Feb 21, 2022
Amended description with annotations
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Feb 21, 2022
Description
Search/Exam
Feb 21, 2022
Letter accompanying subsequently filed items
Search/Exam
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Annex to the communication
Search/Exam
Oct 21, 2021
Communication from the Examining Division
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(Electronic) Receipt
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Sep 24, 2021
Amended claims with annotations
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Sep 24, 2021
Annex
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Annex
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Sep 24, 2021
Claims
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Sep 24, 2021
Letter accompanying subsequently filed items
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(Electronic) Receipt
Search/Exam
Jul 30, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 30, 2021
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Annex to the communication
Search/Exam
Mar 26, 2021
Communication from the Examining Division
Search/Exam
Mar 22, 2021
Examination started
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Dec 17, 2020
(Electronic) Receipt
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Dec 17, 2020
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Amended claims with annotations
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Dec 17, 2020
Amendments received before examination
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Dec 17, 2020
Letter accompanying subsequently filed items
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Information regarding early processing
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Mar 27, 2020
Information on entry into European phase
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Mar 26, 2020
(Electronic) Receipt
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Mar 26, 2020
Request for entry into the European phase
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May 23, 2019
Copy of the international search report
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May 23, 2019
Published international application - A1
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Jun 7, 2018
ISR: cited documents
PCTISA
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Abstract
PCTISA
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Annex
PCTISA
Dec 18, 2017
Claims
PCTISA
Dec 18, 2017
Description
PCTISA
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