Transmission and method for control of boost spool
US-12398679-B2 · Aug 26, 2025 · US
Mechanical Engineering
Mechanical Engineering · 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 | F02K3/12 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Powerplant with multiple integrated gas turbine engines
US-12392296-B2 · Aug 19, 2025 · US
Distributed propulsion with offset propulsion modules
US-12305569-B2 · May 20, 2025 · US
Pre-heating aircraft engine in standby mode
US-12110116-B1 · Oct 8, 2024 · US
Power turbine shaft for decoupled gas generator
US-12091183-B1 · Sep 17, 2024 · US
Distributed propulsion with offset propulsion modules
US-2024229709-A9 · Jul 11, 2024 · US
Transmission and method for control of boost spool
US-11976598-B2 · May 7, 2024 · US
Distributed propulsion with offset propulsion modules
US-2024133339-A1 · Apr 25, 2024 · US
Aircraft propulsion assembly comprising two adjacent engines, of which the outlet nozzles have a straight portion in the vicinity of a median plane of the propulsion assembly
US-11878809-B2 · Jan 23, 2024 · US
Turbofan with offset gas generator and auxiliary power core
US-11840958-B2 · Dec 12, 2023 · US
Aircraft propulsion system and aircraft powered by such a propulsion system built into the rear of an aircraft fuselage
US-11821360-B2 · Nov 21, 2023 · US
Transmission and method for control of boost spool
US-2023358176-A1 · Nov 9, 2023 · US
Multi core geared gas turbine engine
US-11781478-B2 · Oct 10, 2023 · US
Boost spool flow control and generator load matching via load compressor
US-11639690-B1 · May 2, 2023 · US
Turbofan with offset gas generator and auxiliary power core
US-2023037652-A1 · Feb 9, 2023 · US
Gas generator bifurcating exhaust duct to free turbine
US-2022403774-A1 · Dec 22, 2022 · US
Turbine diagnostic feature selection system
US-11396825-B2 · Jul 26, 2022 · US
Supersonic aircraft propulsion installation
US-11383848-B2 · Jul 12, 2022 · US
Gear and gas turbine engine
US-11326555-B2 · May 10, 2022 · US
Multi core geared gas turbine engine
US-2022128003-A1 · Apr 28, 2022 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02K3/12?
- CPC F02K3/12 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02K3/12 (Mechanical Engineering)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC F02K3/12 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).