Patent No. EP3491345 (titled "Pump Head And Metering Device") was filed by F Holzer on Jun 1, 2017. The application was issued on Oct 16, 2024.
Pump head for dosing devices, comprising a head part with an outlet opening, an elastic valve with a geometric design matching the head part's inner surface, and a first component with a passage opening for the fluid to be dispensed. The elastic valve has a predetermined bending point that enables complete closure of the outlet opening when the pump head is actuated, ensuring the pump head is completely emptied and securely closed.

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 |
|---|---|---|
| APTAR RADOLFZELL | May 2, 2022 | WITTE |
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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