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The patent EP3880335 was granted to Saati on Mar 29, 2023. The application was filed on Oct 21, 2020 under application number EP20796947A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| SEFAR | Dec 28, 2023 | WUNDERLICH & HEIM PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2011089009 |
| INTERNATIONAL-SEARCH-REPORT | US2014275692 |
| INTERNATIONAL-SEARCH-REPORT | US2017106334 |
| INTERNATIONAL-SEARCH-REPORT | US2018237967 |
| OPPOSITION | EP3231595 |
| OPPOSITION | EP3366362 |
| OPPOSITION | US2014275692 |
| OPPOSITION | US2017106334 |
| OPPOSITION | WO2006131081 |
| OPPOSITION | WO2008106903 |
| OPPOSITION | WO2010124899 |
| OPPOSITION | WO2011089009 |
| OPPOSITION | WO2021079282 |
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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Oct 8, 2025
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(Electronic) Receipt
Appeal
Sep 8, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Means of redress
OPPO
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OPPO
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Decision to grant a European patent
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Feb 16, 2023
(Electronic) Receipt
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Feb 16, 2023
Filing of the translations of the claims
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Feb 16, 2023
French translation of claims
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Feb 16, 2023
German translation of the claims
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Feb 16, 2023
Letter accompanying subsequently filed items
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Intention to grant (signatures)
Search/Exam
Jan 3, 2023
Text intended for grant (clean copy)
Search/Exam
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(Electronic) Receipt
Search/Exam
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Amended claims with annotations
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Amended description with annotations
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Claims
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Description
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Letter accompanying subsequently filed items
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Annex to the communication
Search/Exam
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Examination started
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Sep 13, 2021
(Electronic) Receipt
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Sep 13, 2021
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Request for entry into the European phase
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Jun 15, 2021
Submission concerning representation
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Copy of the international search report
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Apr 29, 2021
Published international application - A1
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Feb 2, 2021
ISR: cited documents
PCTISA
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Abstract
PCTISA
Oct 30, 2020
Claims
PCTISA
Oct 30, 2020
Description
PCTISA
Oct 30, 2020
Drawings
PCTISA
Oct 30, 2020
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Priority search results copy provided by EPO
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