Sound attenuating air intake systems for marine engines
US-9784218-B1 · Oct 10, 2017 · US
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Passageway systems
Passageway systems · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02M3/12 |
| Official title | Passageway systems |
| Display label | Passageway systems |
| Total patents | 1 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Not enough yearly data to assess filing trend yet.
| Year | Patents |
|---|---|
| 2017 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.