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The patent EP3491929 was granted to Lytone Enterprise on Jul 21, 2021. The application was filed on Nov 29, 2018 under application number EP18209212A. 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 |
|---|---|---|---|
| VDF FUTURECEUTICALS | Apr 21, 2022 | SAMSON & PARTNER PATENTANWALTE MBB | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | US2005129827 |
| OPPOSITION | US2016038557 |
| OPPOSITION | US6572915 |
| OPPOSITION | US7807205 |
| OPPOSITION | WO02100192 |
| OPPOSITION | WO2013049523 |
| OPPOSITION | WO2017040810 |
| SEARCH | US2016038557 |
| SEARCH | US2017007658 |
| SEARCH | US2017327776 |
| SEARCH | WO2013049523 |
| SEARCH | WO2017040810 |
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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May 3, 2023
Refund of fees
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Aug 3, 2021
Jun 24, 2021
Decision to grant a European patent
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Jun 11, 2021
(Electronic) Receipt
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Jun 11, 2021
Filing of the translations of the claims
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Jun 11, 2021
French translation of claims
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Jun 11, 2021
German translation of the claims
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Jun 11, 2021
Letter accompanying subsequently filed items
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May 17, 2021
Change to the inventor details
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May 7, 2021
(Electronic) Receipt
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May 7, 2021
Letter accompanying subsequently filed items
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May 7, 2021
Letter concerning the inventor
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Mar 5, 2021
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Intention to grant (signatures)
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Mar 5, 2021
Text intended for grant (clean copy)
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Mar 5, 2021
Jan 29, 2021
(Electronic) Receipt
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Jan 29, 2021
Amended claims with annotations
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Jan 29, 2021
Amended description with annotations
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Jan 29, 2021
Claims
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Jan 29, 2021
Description
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Jan 29, 2021
Letter accompanying subsequently filed items
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Jan 29, 2021
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Nov 26, 2020
Nov 19, 2020
(Electronic) Receipt
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Nov 19, 2020
Letter accompanying subsequently filed items
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Nov 19, 2020
Aug 7, 2020
Annex to the communication
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Aug 7, 2020
Communication from the Examining Division
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Jul 13, 2020
(Electronic) Receipt
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Jul 13, 2020
Amended claims with annotations
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Jul 13, 2020
Annex
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Jul 13, 2020
Claims
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Jul 13, 2020
Letter accompanying subsequently filed items
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May 6, 2020
Apr 28, 2020
(Electronic) Receipt
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Apr 28, 2020
Letter accompanying subsequently filed items
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Apr 28, 2020
Jan 13, 2020
Annex to the communication
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Jan 13, 2020
Communication from the Examining Division
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Jan 7, 2020
Examination started
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Dec 5, 2019
(Electronic) Receipt
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Dec 5, 2019
Dec 5, 2019
Amended claims with annotations
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Dec 5, 2019
Amendments received before examination
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Dec 5, 2019
Letter accompanying subsequently filed items
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Jun 11, 2019
May 28, 2019
(Electronic) Receipt
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May 28, 2019
Letter accompanying subsequently filed items
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May 28, 2019
Matter concerning the application
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May 28, 2019
Priority document
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May 21, 2019
Communication to designated inventor
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May 20, 2019
Invitation to file priority document
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May 14, 2019
(Electronic) Receipt
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May 14, 2019
(Electronic) Receipt
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May 14, 2019
Designation of inventor
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May 14, 2019
Letter accompanying subsequently filed items
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May 14, 2019
Letter accompanying subsequently filed items
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May 14, 2019
Letter concerning the inventor
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May 14, 2019
Letter concerning the inventor
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May 8, 2019
Notification of forthcoming publication
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Feb 18, 2019
Feb 18, 2019
European search opinion
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Feb 18, 2019
European search report
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Feb 18, 2019
Information on Search Strategy
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Feb 12, 2019
Communication to designated inventor
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Feb 12, 2019
Communication to designated inventor
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Feb 12, 2019
Communication to designated inventor
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Feb 7, 2019
Search started
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Nov 29, 2018
Abstract
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Nov 29, 2018
Nov 29, 2018
Claims
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Nov 29, 2018
Description
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Nov 29, 2018
Designation of inventor
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Nov 29, 2018
Drawings
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Nov 29, 2018
Request for grant of a European patent
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