Solar hot air balloon vent
US-2025066008-A1 · Feb 27, 2025 · US
Gas valve operating mechanisms
Gas valve operating mechanisms · 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 | B64B1/64 |
| Official title | Gas valve operating mechanisms |
| Display label | Gas valve operating mechanisms |
| Total patents | 35 |
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 | 4 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Airship and long-term floating capacity maintenance method thereof
US-12116102-B2 · Oct 15, 2024 · US
System and method for supplying a lighter-than-air vehicle with hydrogen gas
US-RE49947-E · Apr 30, 2024 · US
Stratospheric lift system with partial ballonet
US-11608153-B2 · Mar 21, 2023 · US
Level shifter, gate driving circuit, and display device
US-11600213-B2 · Mar 7, 2023 · US
Variable-lift ability device comprising an anti-stratification diffuser
US-11524760-B2 · Dec 13, 2022 · US
Airship and long-term floating capacity maintenance method thereof
US-2022388624-A1 · Dec 8, 2022 · US
Propulsion and altitude control operation inhibitors in high altitude platforms
US-2022242548-A1 · Aug 4, 2022 · US
Storm Avoidance System for LTA Vehicle
US-2022242549-A1 · Aug 4, 2022 · US
Level shifter, gate driving circuit, and display device
US-2022208058-A1 · Jun 30, 2022 · US
Mixed lifting gases for high-altitude balloons
US-2022041262-A1 · Feb 10, 2022 · US
Stratospheric lift system with partial ballonet
US-2021316835-A1 · Oct 14, 2021 · US
Variable-liftability device comprising an anti-stratification diffuser
US-2021253217-A1 · Aug 19, 2021 · US
System and method for supplying a lighter-than-air vehicle with hydrogen gas
US-11072525-B2 · Jul 27, 2021 · US
Superpressure balloon thermal control with low-emissivity cap and active air venting
US-2021171180-A1 · Jun 10, 2021 · US
System for measuring fluid characteristics
US-2021132636-A1 · May 6, 2021 · US
Unmanned aerial vehicle and method using the same
US-10850842-B2 · Dec 1, 2020 · US
Hydrogen recycling flight system and flight method
US-10843784-B2 · Nov 24, 2020 · US
Altitude control system
US-2020115024-A1 · Apr 16, 2020 · US
Active valve for throttling ascent rate
US-2019382094-A1 · Dec 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64B1/64?
- CPC B64B1/64 is the Cooperative Patent Classification code for “Gas valve operating mechanisms.”
- How many patents are filed under CPC B64B1/64 (Gas valve operating mechanisms)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC B64B1/64 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).