Patent No. EP3285132 (titled "Method And Dispensing Apparatus For Dispensing A Powder And/Or Granular Material") was filed by Jauhetekniikka Kotka on Aug 15, 2017. The application was issued on Oct 19, 2022.

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 |
|---|---|---|
| DOSETEC EXACT | Mar 12, 2020 | LAINE |
| ZEPPELIN SYSTEMS | Mar 10, 2020 | KEIL & SCHAAFHAUSEN PATENTANWALTE PARTGMBB |
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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