Internal combustion engine
US-11125181-B2 · Sep 21, 2021 · US
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the depth of the combustion space being much smaller than the diameter of the piston, e.g. the depth being in the order of one tenth of the diameter
the depth of the combustion space being much smaller than the diameter of the piston, e.g. the depth being in the order of one tenth of the diameter · 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 | F02B23/0642 |
| Official title | {the depth of the combustion space being much smaller than the diameter of the piston, e.g. the depth being in the order of one tenth of the diameter} |
| Display label | the depth of the combustion space being much smaller than the diameter of the piston, e.g. the depth being in the order of one tenth of the diameter |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 4 |
| 2021 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Combustion chamber structure for engine
US-11015515-B2 · May 25, 2021 · US
Combustion chamber structure for engine
US-10851702-B2 · Dec 1, 2020 · US
Internal Combustion Engine
US-2020173392-A1 · Jun 4, 2020 · US
Combustion chamber structure for engine
US-2020158007-A1 · May 21, 2020 · US
Combustion chamber structure for engine
US-2020158006-A1 · May 21, 2020 · US
Combustion chamber structure for diesel engine
US-9938887-B2 · Apr 10, 2018 · US
Combustion Chamber Structure for Diesel Engine
US-2017145901-A1 · May 25, 2017 · US