Rotary engine
US-11732640-B2 · Aug 22, 2023 · US
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Other reciprocating-piston engines
Other reciprocating-piston engines · 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 | F02B75/40 |
| Official title | Other reciprocating-piston engines |
| Display label | Other reciprocating-piston engines |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 4 |
| 2018 | 1 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary engine
US-2023151762-A1 · May 18, 2023 · US
Non-uniform displacement engine control system with different control modes based on state of charge of battery and method for controlling non-uniform displacement engine with different control modes based on state of charge of battery
US-10041423-B2 · Aug 7, 2018 · US
Engine assembly
US-9810173-B2 · Nov 7, 2017 · US
Engine assembly
US-2017138295-A1 · May 18, 2017 · US
Non-uniform displacement engine control system with different control modes based on state of charge of battery and method for controlling non-uniform displacement engine with different control modes based on state of charge of battery
US-2017082046-A1 · Mar 23, 2017 · US
System and method for motor-assisted non-uniform displacement engine control
US-2017080920-A1 · Mar 23, 2017 · US
Double-reed exhaust valve engine
US-9068484-B2 · Jun 30, 2015 · US