Multi-fuel engine system
US-9845774-B2 · Dec 19, 2017 · US
operating in a special mode, e.g. in a liquid fuel only mode for starting
operating in a special mode, e.g. in a liquid fuel only mode for 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 | F02D19/105 |
| Official title | {operating in a special mode, e.g. in a liquid fuel only mode for starting} |
| Display label | operating in a special mode, e.g. in a liquid fuel only mode for starting |
| Total patents | 198 |
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 | 20 |
| 2016 | 25 |
| 2017 | 18 |
| 2018 | 19 |
| 2019 | 27 |
| 2020 | 18 |
| 2021 | 26 |
| 2022 | 11 |
| 2023 | 14 |
| 2024 | 6 |
| 2025 | 10 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for operating a compression ignition engine
US-9810139-B2 · Nov 7, 2017 · US
Systems, methods, and apparatus for operation of dual fuel engines
US-2017234245-A1 · Aug 17, 2017 · US
Method for controlling an internal combustion engine
US-9719447-B2 · Aug 1, 2017 · US
Ventilation controls for dual-fuel engines
US-2017204792-A1 · Jul 20, 2017 · US
Uniflow scavenging two-cycle engine
US-2017175616-A1 · Jun 22, 2017 · US
Method for operating engine for vessel
US-2017174306-A1 · Jun 22, 2017 · US
Starting a gaseous and pilot fuelled engine
US-2017175657-A1 · Jun 22, 2017 · US
Natural gas engine and operation method for natural gas engine
US-9677465-B2 · Jun 13, 2017 · US
Gas pressure high and low detection
US-9657653-B2 · May 23, 2017 · US
Multi-pulse injection events for a dual-fuel engine
US-2017122226-A1 · May 4, 2017 · US
Natural gas engine and operation method for natural gas engine
US-9638110-B2 · May 2, 2017 · US
System and method for controlling operation of an engine
US-9631569-B2 · Apr 25, 2017 · US
Control system and method for isolating high pressure pilot fuel in dual-fuel HPDI system
US-9556805-B2 · Jan 31, 2017 · US
Cylinder pressure based control of dual fuel engines
US-2017009671-A1 · Jan 12, 2017 · US
Fuel system having a fuel-cooled injector
US-9500168-B2 · Nov 22, 2016 · US
Electrically Detecting Position of Fuel Admission Valves
US-2016319765-A1 · Nov 3, 2016 · US
Hybrid pump control for multi fuel engine system
US-9482167-B2 · Nov 1, 2016 · US
Cylinder pressure based control of dual fuel engines
US-9464583-B2 · Oct 11, 2016 · US
Control apparatus and method for an internal combustion engine
US-9422893-B2 · Aug 23, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D19/105?
- CPC F02D19/105 is the Cooperative Patent Classification code for “operating in a special mode, e.g. in a liquid fuel only mode for starting.”
- How many patents are filed under CPC F02D19/105 (operating in a special mode, e.g. in a liquid fuel only mode for starting)?
- Our database includes 198 publications tagged with this CPC code.
- Is patent activity under CPC F02D19/105 growing?
- Publication counts under this code: 6 in 2024 vs 10 in 2025 (latest complete years).