Method and systems for gaseous and liquid propane injection
US-2018298848-A1 · Oct 18, 2018 · US
to adjust the fuel pressure, temperature or composition
to adjust the fuel pressure, temperature or composition · 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 | F02D19/022 |
| Official title | {to adjust the fuel pressure, temperature or composition} |
| Display label | to adjust the fuel pressure, temperature or composition |
| Total patents | 191 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 20 |
| 2017 | 18 |
| 2018 | 22 |
| 2019 | 20 |
| 2020 | 14 |
| 2021 | 12 |
| 2022 | 11 |
| 2023 | 11 |
| 2024 | 15 |
| 2025 | 27 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and systems for fuel injection control
US-10066570-B2 · Sep 4, 2018 · US
System and method for operating a cryogenic fuel system
US-9989017-B2 · Jun 5, 2018 · US
Methods and systems for fuel injection control
US-2018149107-A1 · May 31, 2018 · US
Cryogenic pump operation for controlling heat exchanger discharge temperature
US-2018073494-A1 · Mar 15, 2018 · US
Internal combustion engine
US-9850807-B2 · Dec 26, 2017 · US
Control system for internal combustion engine and inert gas concentration detecting device for compressed natural gas
US-9850867-B2 · Dec 26, 2017 · US
Method for operating a compression ignition engine
US-9810139-B2 · Nov 7, 2017 · US
Natural gas leak detection through pressure loss in pneumatic starter and prelube
US-9777645-B2 · Oct 3, 2017 · US
Method and system for delivering a gaseous fuel into the air intake system of an internal combustion engine
US-9771886-B2 · Sep 26, 2017 · US
Gaseous fuel pumping system
US-2017241350-A1 · Aug 24, 2017 · US
Method And Apparatus For Supplying A Gaseous Fuel To An Internal Combustion Engine
US-2017184056-A1 · Jun 29, 2017 · US
Stacked plate heat exchanger for an LPG-fueled vehicle
US-9656533-B2 · May 23, 2017 · US
Method and System for Operating Gaseous-Fuelled Direct Injection Internal Combustion Engine
US-2017130657-A1 · May 11, 2017 · US
Fuel supply system
US-9644579-B2 · May 9, 2017 · US
Apparatus and method for charging lpg fuel vehicle
US-2017122272-A1 · May 4, 2017 · US
Fuel system for bi-fuel vehicle and method of filling bi-fuel vehicle with lpg fuel using the same
US-2017107948-A1 · Apr 20, 2017 · US
Method and apparatus for supplying a gaseous fuel to an internal combustion engine
US-9624871-B2 · Apr 18, 2017 · US
Method and system for supplying liquefied petroleum gas to a direct fuel injected engine
US-9617927-B2 · Apr 11, 2017 · US
Pressure regulator for fuel supply system
US-2017082076-A1 · Mar 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D19/022?
- CPC F02D19/022 is the Cooperative Patent Classification code for “to adjust the fuel pressure, temperature or composition.”
- How many patents are filed under CPC F02D19/022 (to adjust the fuel pressure, temperature or composition)?
- Our database includes 191 publications tagged with this CPC code.
- Is patent activity under CPC F02D19/022 growing?
- Publication counts under this code: 15 in 2024 vs 27 in 2025 (latest complete years).