Method for synchronising the engines of an airplane with dual intermediate state
US-9849997-B2 · Dec 26, 2017 · US
specially adapted for the control of two or more plants simultaneously
specially adapted for the control of two or more plants simultaneously · 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 | F02C9/42 |
| Official title | specially adapted for the control of two or more plants simultaneously |
| Display label | specially adapted for the control of two or more plants simultaneously |
| Total patents | 346 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 25 |
| 2017 | 31 |
| 2018 | 29 |
| 2019 | 17 |
| 2020 | 43 |
| 2021 | 36 |
| 2022 | 37 |
| 2023 | 50 |
| 2024 | 39 |
| 2025 | 16 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Probabilistic control in gas turbine tuning for power output-emissions parameters, related control systems, computer program products and methods
US-9797315-B2 · Oct 24, 2017 · US
Application of probabilistic control in gas turbine tuning, related control systems, computer program products and methods
US-9771875-B2 · Sep 26, 2017 · US
Hybrid propulsion system for a multi-engine aircraft
US-2017247114-A1 · Aug 31, 2017 · US
System and method for starting the engines of a twin-engine aircraft
US-2017233089-A1 · Aug 17, 2017 · US
Rapid assistance device for a free turbine engine of an aircraft
US-2017226933-A1 · Aug 10, 2017 · US
Universal external isolation and b&b valve skid for industrial gas appliances
US-2017191579-A1 · Jul 6, 2017 · US
Machine-specific probabilistic control in gas turbine tuning for power output-emissions parameters, related control systems, computer program products and methods
US-2017175644-A1 · Jun 22, 2017 · US
Assisting the piloting of a multi-engined rotorcraft in an engine-failure situation, in the context of a main rotor of the rotorcraft being driven at variable speed
US-9676490-B2 · Jun 13, 2017 · US
Application of probabilistic control in gas turbine tuning for power output-emissions parameters with scaling factor, related control systems, computer program products and methods
US-2017159575-A1 · Jun 8, 2017 · US
Adaptive Engine Model Torque Splitting Optimization
US-2017159574-A1 · Jun 8, 2017 · US
Architecture of a multiple-engine helicopter propulsion system, and corresponding helicopter
US-2017152055-A1 · Jun 1, 2017 · US
Systems and Methods for Injection of Bio-Diesel into a Gas Turbine Combustor
US-2017107913-A1 · Apr 20, 2017 · US
Architecture of a multi-engine helicopter propulsion system and corresponding helicopter
US-2017096233-A1 · Apr 6, 2017 · US
Method of regulating a three-engined power plant for a rotary wing aircraft
US-2017066541-A1 · Mar 9, 2017 · US
Multi-shaft combined cycle plant, and control device and operation method thereof
US-2017058717-A1 · Mar 2, 2017 · US
Twin-engined rotorcraft having a fuel supply installation for a power plant auxiliary power unit (APU)
US-9580184-B2 · Feb 28, 2017 · US
Aircraft power plant
US-9581025-B2 · Feb 28, 2017 · US
Method for synchronising the engines of an airplane with dual intermediate state
US-2017036774-A1 · Feb 9, 2017 · US
Compressor control device, compressor control system, and compressor control method
US-2017009664-A1 · Jan 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02C9/42?
- CPC F02C9/42 is the Cooperative Patent Classification code for “specially adapted for the control of two or more plants simultaneously.”
- How many patents are filed under CPC F02C9/42 (specially adapted for the control of two or more plants simultaneously)?
- Our database includes 346 publications tagged with this CPC code.
- Is patent activity under CPC F02C9/42 growing?
- Publication counts under this code: 39 in 2024 vs 16 in 2025 (latest complete years).