Field briefing
F01N · Gas-flow silencers or exhaust apparatus for machines or engines in general
Gas-flow silencers or exhaust apparatus for machines or engines in general; gas-flow silencers or exhaust apparatus for internal-combustion engines. Patents classified in CPC F01N, part of Engines, machines, heating and lighting.
Dates, owners, statuses and filings come from the published records. Derived views are counted from them. Highlighted text is a plain-English AI reading, written from a patent's title and abstract. Legal statuses and expiry dates are estimates, not legal advice.
Who works on this, where, and with whom
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Connected industries
Other industries that share patents, companies or citations with Gas-flow silencers or exhaust apparatus for machines or engines in general.
Newest patents in F01N · Gas-flow silencers or exhaust apparatus for machines or engines in general
4 patents imported from the European Patent Office; newest published 2026-08-25; most active companies: Tenneco Suzhou Emission System Co Ltd, Toyota Ind Corp, 无锡威孚力达催化净化器有限责任公司.
- 一种安全电加热器及汽车后处理系统 CN122640871A, published 2026-08-25
- BURNER WO2026113314A1, published 2026-06-04
- BURNER WO2026113315A1, published 2026-06-04
- WASTE HEAT REGENERATION SYSTEM JP2012246874A, published 2012-12-13
Most active companies
Counted over the newest 4 imported patents in this industry.
- Tenneco Suzhou Emission System Co Ltd 2 patents
- Toyota Ind Corp 1 patent
- 无锡威孚力达催化净化器有限责任公司 1 patent