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The patent EP3312122 was granted to Murata Machinery on Apr 17, 2019. The application was filed on Oct 18, 2017 under application number EP17197182A. 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 |
|---|---|---|---|
| MASCHINENFABRIK RIETER | Jan 15, 2020 | GYGI | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH01183530 |
| OPPOSITION | DE4012930 |
| OPPOSITION | EP1006069 |
| OPPOSITION | JPH01183530 |
| OPPOSITION | WO2016016739 |
| SEARCH | DE4012930 |
| SEARCH | EP1006069 |
| SEARCH | JPH01183530 |
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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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Letter concerning fees and payments
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Notification of forthcoming publication
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European search opinion
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European search report
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Information on Search Strategy
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Search started
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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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Abstract
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Claims
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Description
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Designation of inventor
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Drawings
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Request for grant of a European patent
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Oct 18, 2017
Submission concerning representation
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