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The patent EP3416469 was granted to Seedmaster Manufacturing on Mar 10, 2021. The application was filed on Feb 16, 2017 under application number EP17752606A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| KALVERKAMP INNOVATION | Dec 10, 2021 | BOSSMEYER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE29714523U |
| INTERNATIONAL-SEARCH-REPORT | US4060259 |
| INTERNATIONAL-SEARCH-REPORT | US4260172 |
| INTERNATIONAL-SEARCH-REPORT | US5316338 |
| INTERNATIONAL-SEARCH-REPORT | US6321852 |
| OPPOSITION | DE102012107897 |
| OPPOSITION | DE1113848 |
| OPPOSITION | DE2121495 |
| OPPOSITION | DE2133779 |
| OPPOSITION | DE2554746 |
| OPPOSITION | DE3418721 |
| OPPOSITION | EP1369007 |
| OPPOSITION | GB1578857 |
| OPPOSITION | JP2010279342 |
| OPPOSITION | US2015237791 |
| OPPOSITION | US3472322 |
| OPPOSITION | US7059107 |
| OPPOSITION | US7549279 |
| OPPOSITION | US8312957 |
| OPPOSITION | WO0123241 |
| OPPOSITION | WO9007866 |
| OPPOSITION | WO9609950 |
| OPPOSITION | WO9615656 |
| SEARCH | EP1369007 |
| SEARCH | US3472322 |
| SEARCH | US8312957 |
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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Sep 9, 2025
Refund of fees
Search/Exam
Sep 3, 2025
Aug 22, 2025
(Electronic) Receipt
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Aug 22, 2025
Annex
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Aug 22, 2025
Letter accompanying subsequently filed items
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Decision to grant a European patent
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Filing of the translations of the claims
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Jan 6, 2021
French translation of claims
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German translation of the claims
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Jan 6, 2021
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Nov 30, 2020
Text intended for grant (clean copy)
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Amended claims with annotations
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Claims
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Examination started
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Priority search results
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Amended claims with annotations
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Amended description with annotations
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Letter accompanying subsequently filed items
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Oct 10, 2019
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European search opinion
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Sep 23, 2019
Information on Search Strategy
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Sep 23, 2019
Supplementary European search report
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Sep 6, 2019
Search started
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Mar 25, 2019
Communication to designated inventor
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Mar 15, 2019
(Electronic) Receipt
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Mar 15, 2019
Letter accompanying subsequently filed items
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Mar 15, 2019
Letter concerning the inventor
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Letter which had not been notified
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Letter concerning fees and payments
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Amended claims with annotations
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Amended description with annotations
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Amendments received before examination
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Letter accompanying subsequently filed items
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Sep 25, 2018
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Communication to designated inventor
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Sep 6, 2018
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(Electronic) Receipt
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Aug 22, 2018
Request for entry into the European phase
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Information on entry into European phase
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Copy of the international search report
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Aug 24, 2017
Published international application - A1
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