Engine having hotspot fuel igniter and piston and methodology using same
US-12565865-B2 · Mar 3, 2026 · US
Other methods of operation
Other methods of operation · 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 | F02B75/12 |
| Official title | Other methods of operation |
| Display label | Other methods of operation |
| Total patents | 38 |
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 | 6 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 5 |
| 2021 | 1 |
| 2023 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine having hotspot fuel igniter and piston and methodology using same
US-2025270969-A1 · Aug 28, 2025 · US
Apparatus of injecting fuel for engine and method thereof
US-2023358162-A1 · Nov 9, 2023 · US
GDCI engine with accelerated oil warm-up
US-11655738-B2 · May 23, 2023 · US
Method for maximizing the formation of deposits in injector nozzles of GDI engines
US-11193465-B2 · Dec 7, 2021 · US
Engine controller
US-10513999-B2 · Dec 24, 2019 · US
System for variable actuation of a valve of an internal-combustion engine
US-10364712-B2 · Jul 30, 2019 · US
Method for maximizing the formation of deposits in injector nozzles of gdi engines
US-2019195184-A1 · Jun 27, 2019 · US
Engine
US-10280831-B2 · May 7, 2019 · US
Multi-cylinder Otto-cycle engine and method for operating the same
US-10196991-B2 · Feb 5, 2019 · US
Hybrid combustion system and method
US-10113492-B2 · Oct 30, 2018 · US
Engine control device
US-10107179-B2 · Oct 23, 2018 · US
Engine
US-2018252151-A1 · Sep 6, 2018 · US
Hybrid Combustion System and Method
US-2018171889-A1 · Jun 21, 2018 · US
Method and system for knock control
US-9822714-B2 · Nov 21, 2017 · US
System for variable actuation of a valve of an internal-combustion engine
US-2017183991-A1 · Jun 29, 2017 · US
Single-shaft dual expansion internal combustion engine
US-9677464-B2 · Jun 13, 2017 · US
Gdci engine with accelerated oil warm-up
US-2017159516-A1 · Jun 8, 2017 · US
Method and appratus for reducing emissions and/or reducing friction in an internal combusition engine
US-2017122147-A1 · May 4, 2017 · US
Method and apparatus for reducing emissions and/or reducing friction in an internal combustion engine
US-2017089241-A1 · Mar 30, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B75/12?
- CPC F02B75/12 is the Cooperative Patent Classification code for “Other methods of operation.”
- How many patents are filed under CPC F02B75/12 (Other methods of operation)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC F02B75/12 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2025 (latest complete years).