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The patent EP3285132 was granted to Jauhetekniikka Kotka on Oct 19, 2022. The application was filed on Aug 15, 2017 under application number EP17186259A. 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 |
|---|---|---|---|
| DOSETEC EXACT | Mar 12, 2020 | LAINE | - |
| ZEPPELIN SYSTEMS | Mar 10, 2020 | KEIL & SCHAAFHAUSEN PATENTANWALTE PARTGMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE10317001 |
| OPPOSITION | EP1688718 |
| OPPOSITION | GB772385 |
| OPPOSITION | US2006056924 |
| OPPOSITION | US4277279 |
| SEARCH | EP0304093 |
| SEARCH | US2006165495 |
| SEARCH | WO9601175 |
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
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(Electronic) Receipt
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Filing of the translations of the claims
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French translation of claims
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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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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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(Electronic) Receipt
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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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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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(Electronic) Receipt
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Abstract
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Claims
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Description
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Letter accompanying subsequently filed items
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Communication to designated inventor
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Priority document
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Designation of inventor
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Request for grant of a European patent
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