Valve State Detection System and Assembly for Aircraft Fuel System and Method
US-2026035087-A1 · Feb 5, 2026 · US
Control thereof
Control thereof · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64D37/28 |
| Official title | Control thereof |
| Display label | Control thereof |
| Total patents | 37 |
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 | 1 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel distribution system, method, and hydrogen aircraft
US-2025319985-A1 · Oct 16, 2025 · US
Flying vehicle having auxiliary thruster and method for controlling auxiliary thruster
US-2025187727-A1 · Jun 12, 2025 · US
Deployable drains mast
US-2025187746-A1 · Jun 12, 2025 · US
Pump system
US-2025100704-A1 · Mar 27, 2025 · US
Apparatus comprising a device for regulating a concentration of dihydrogen
US-12253028-B2 · Mar 18, 2025 · US
Adaptive aircraft power management system
US-2024327011-A1 · Oct 3, 2024 · US
Fuel pump management system and method of operating a fuel pump management system
US-12006058-B2 · Jun 11, 2024 · US
Method of determining an operating condition of a valve of an aircraft system
US-2024151184-A1 · May 9, 2024 · US
Apparatus comprising a device for regulating a concentration of dihydrogen
US-2024125274-A1 · Apr 18, 2024 · US
Fuel cell system and method for exhausting hydrogen therein
US-2024113310-A1 · Apr 4, 2024 · US
Aircraft
US-2023406528-A1 · Dec 21, 2023 · US
Fuel drain engagement tool
US-11814188-B2 · Nov 14, 2023 · US
Simultaneously pumping and measuring density of aircraft fuel
US-11635031-B2 · Apr 25, 2023 · US
Aircraft fuel system and associated method
US-11332257-B2 · May 17, 2022 · US
Simultaneously pumping and measuring density of aircraft fuel
US-2021139159-A1 · May 13, 2021 · US
Fuel drain engagement tool
US-2021039803-A1 · Feb 11, 2021 · US
Fuel pump management system and method of operating a fuel pump management system
US-2020262576-A1 · Aug 20, 2020 · US
Aircraft fuel system
US-10710737-B2 · Jul 14, 2020 · US
Removing water from fuel tanks
US-10677206-B2 · Jun 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64D37/28?
- CPC B64D37/28 is the Cooperative Patent Classification code for “Control thereof.”
- How many patents are filed under CPC B64D37/28 (Control thereof)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC B64D37/28 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).