Compound engine system with rotary engine
US-11187146-B2 · Nov 30, 2021 · US
Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B27/00)
Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B27/00) · 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 | F01C21/183 |
| Official title | {Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B27/00)} |
| Display label | Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B27/00) |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 1 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 1 |
| 2020 | 5 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary internal combustion engine with pilot subchamber
US-10697365-B2 · Jun 30, 2020 · US
Compound engine system with rotary engine
US-2020123971-A1 · Apr 23, 2020 · US
Rotary internal combustion engine with pilot subchamber
US-10578012-B2 · Mar 3, 2020 · US
Rotary internal combustion engine with pilot subchamber
US-10557407-B2 · Feb 11, 2020 · US
Compound engine system with rotary engine
US-10544733-B2 · Jan 28, 2020 · US
Rotary internal combustion engine with pilot subchamber
US-2019055882-A1 · Feb 21, 2019 · US
Rotary internal combustion engine
US-10138804-B2 · Nov 27, 2018 · US
Rotary internal combustion engine with pilot subchamber
US-10125676-B2 · Nov 13, 2018 · US
Rotary internal combustion engine with pilot subchamber
US-2018187593-A1 · Jul 5, 2018 · US
Rotary internal combustion engine with pilot subchamber
US-10006358-B2 · Jun 26, 2018 · US
Rotary internal combustion engine with exhaust purge
US-9926842-B2 · Mar 27, 2018 · US
Rotary internal combustion engine with pilot subchamber
US-2018080371-A1 · Mar 22, 2018 · US
Rotary internal combustion engine
US-2018045110-A1 · Feb 15, 2018 · US
Rotary internal combustion engine with variable volumetric compression ratio
US-9828906-B2 · Nov 28, 2017 · US
Compound engine system with rotary engine
US-2017335762-A1 · Nov 23, 2017 · US
Compound engine system with rotary engine
US-9759126-B2 · Sep 12, 2017 · US
Rotary internal combustion engine with variable volumetric compression ratio
US-2017074160-A1 · Mar 16, 2017 · US
Rotary internal combustion engine with pilot subchamber
US-2017067395-A1 · Mar 9, 2017 · US
Rotary internal combustion engine with variable volumetric compression ratio
US-9540992-B2 · Jan 10, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01C21/183?
- CPC F01C21/183 is the Cooperative Patent Classification code for “Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B27/00).”
- How many patents are filed under CPC F01C21/183 (Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B27/00))?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC F01C21/183 growing?
- Publication counts under this code: 5 in 2020 vs 1 in 2021 (latest complete years).