Bypass system for engine startup
US-11920509-B2 · Mar 5, 2024 · US
having valves for admission of atmospheric air to engine, e.g. at starting
having valves for admission of atmospheric air to engine, e.g. at starting · 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 | F02B33/446 |
| Official title | {having valves for admission of atmospheric air to engine, e.g. at starting} |
| Display label | having valves for admission of atmospheric air to engine, e.g. at starting |
| Total patents | 39 |
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 | 4 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Supercharger for vehicle and method of controlling same
US-11619163-B2 · Apr 4, 2023 · US
Methods and system for preparing an engine for starting
US-11603818-B1 · Mar 14, 2023 · US
Bypass system for engine startup
US-2022316385-A1 · Oct 6, 2022 · US
Supercharger for vehicle and method of controlling same
US-2022298959-A1 · Sep 22, 2022 · US
Supercharger for vehicle and method of controlling same
US-11384682-B2 · Jul 12, 2022 · US
Engine system
US-11248520-B2 · Feb 15, 2022 · US
Engine control device and engine control method
US-11208946-B2 · Dec 28, 2021 · US
Supercharger for vehicle and method of controlling same
US-2021388756-A1 · Dec 16, 2021 · US
Engine control device and engine control method
US-2020370468-A1 · Nov 26, 2020 · US
Engine system
US-2020309019-A1 · Oct 1, 2020 · US
Internal combustion engine and method for starting an internal combustion engine
US-10767609-B2 · Sep 8, 2020 · US
Systems and methods for reduced oil carryover
US-10683796-B2 · Jun 16, 2020 · US
Air control apparatus for an engine and a method thereof
US-2020116089-A1 · Apr 16, 2020 · US
Engine system
US-10513976-B2 · Dec 24, 2019 · US
Assembly for an air circuit of a heat engine
US-10400665-B2 · Sep 3, 2019 · US
System and Method for Controlling Compressor Surge
US-2019249595-A1 · Aug 15, 2019 · US
Control device for internal combustion engine having supercharger
US-10352258-B2 · Jul 16, 2019 · US
Engine system and control method using the same
US-10240540-B2 · Mar 26, 2019 · US
Methods for engine air-path reversion management
US-10018108-B2 · Jul 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B33/446?
- CPC F02B33/446 is the Cooperative Patent Classification code for “having valves for admission of atmospheric air to engine, e.g. at starting.”
- How many patents are filed under CPC F02B33/446 (having valves for admission of atmospheric air to engine, e.g. at starting)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC F02B33/446 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2024 (latest complete years).