Patent No. EP3099382 (titled "Flame Arresters") was filed by Elmac on Jan 28, 2015. The application was issued on Sep 6, 2023.
A flame arrester for preventing deflagrations and detonations in conduits, comprising a housing with an inlet and outlet, a baffle plate with a minimum aperture diameter of 0.75 times the inlet diameter, and a flame arrester element located downstream of the baffle plate. The housing has a larger diameter than the inlet, and the baffle plate is flat on both faces and secured to the housing inner wall. The flame arrester element is fabricated by winding a crimped ribbon around a mandrel, with a diameter range of 4/3 to 16/3 times the mandrel diameter.

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 |
|---|---|---|
| BRAUNSCHWEIGER FLAMMENFILTER | Jun 4, 2024 | GRAMM |
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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