Patent No. EP3702291 (titled "Transfer Drum To Transfer Objects Along A Circular Path And Adjustment Method To Carry Out A Format Change Of The Transfer Drum") was filed by GD Societa PER Azioni on Feb 28, 2020. The application was issued on Nov 17, 2021.

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 |
|---|---|---|
| IMA INDUSTRIA MACCHINE AUTOMATICHE | Aug 8, 2022 | PETRAZ |
| FOCKE | Aug 5, 2022 | ELLBERG |
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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