Hybrid power systems for different modes of flight
US-12420921-B2 · Sep 23, 2025 · US
characterised by the fluid being gaseous
characterised by the fluid being gaseous · 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 | B64C13/48 |
| Official title | characterised by the fluid being gaseous |
| Display label | characterised by the fluid being gaseous |
| Total patents | 37 |
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 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 1 |
| 2021 | 12 |
| 2022 | 1 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Single bushing supported pneumatic actuators
US-12337951-B2 · Jun 24, 2025 · US
Control unit, system and method
US-2025178717-A1 · Jun 5, 2025 · US
Hybrid power systems for different modes of flight
US-2024367788-A1 · Nov 7, 2024 · US
Short takeoff and landing vehicle with forward swept wings
US-12103674-B2 · Oct 1, 2024 · US
Hybrid power systems for different modes of flight
US-12071234-B2 · Aug 27, 2024 · US
Single bushing supported pneumatic actuators
US-2024208640-A1 · Jun 27, 2024 · US
Hybrid power systems for different modes of flight
US-2023415886-A1 · Dec 28, 2023 · US
Assemblies for air vehicle control surfaces and related methods
US-2023365250-A1 · Nov 16, 2023 · US
Hybrid power systems for different modes of flight
US-11787537-B2 · Oct 17, 2023 · US
Short takeoff and landing vehicle with forward swept wings
US-2023234704-A1 · Jul 27, 2023 · US
Tilting mechanism with telescoping actuator
US-11639218-B2 · May 2, 2023 · US
Short takeoff and landing vehicle with forward swept wings
US-11634217-B2 · Apr 25, 2023 · US
Redundant drive train for pylon mounted rotors
US-11634218-B2 · Apr 25, 2023 · US
Short takeoff and landing vehicle with forward swept wings
US-2022073200-A1 · Mar 10, 2022 · US
Redundant drive train for pylon mounted rotors
US-2021339854-A1 · Nov 4, 2021 · US
Hybrid power systems for different modes of flight
US-2021339855-A1 · Nov 4, 2021 · US
Tilting mechanism with telescoping actuator
US-2021300541-A1 · Sep 30, 2021 · US
Hybrid power systems for different modes of flight
US-11097839-B2 · Aug 24, 2021 · US
Redundant drive train for pylon mounted rotors
US-11084578-B2 · Aug 10, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64C13/48?
- CPC B64C13/48 is the Cooperative Patent Classification code for “characterised by the fluid being gaseous.”
- How many patents are filed under CPC B64C13/48 (characterised by the fluid being gaseous)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC B64C13/48 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).