Mechanical restrictor-based oxygen initiator
US-2026054103-A1 · Feb 26, 2026 · US
Supply or distribution systems
Supply or distribution systems · 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 | B64D2231/02 |
| Official title | Supply or distribution systems |
| Display label | Supply or distribution systems |
| Total patents | 57 |
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 | 6 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 9 |
| 2020 | 5 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 7 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Oxygen Pressure Relief and Ventilation System and Method
US-2025333177-A1 · Oct 30, 2025 · US
Oxygen Pressure Relief and Ventilation System and Method
US-2025333178-A1 · Oct 30, 2025 · US
Apparatus, System, and Method for Pressure Altitude-Compensating Breath-Controlled Oxygen Release
US-2025303202-A1 · Oct 2, 2025 · US
Emergency oxygen systems for internal cabins of aircraft
US-2025304254-A1 · Oct 2, 2025 · US
Oxygen pressure relief and ventilation system and method
US-12377986-B2 · Aug 5, 2025 · US
Emergency oxygen systems for internal cabins of aircraft
US-12365462-B2 · Jul 22, 2025 · US
Apparatus, system, and method for pressure altitude-compensating breath-controlled oxygen release
US-12329997-B2 · Jun 17, 2025 · US
Individual air supply duct and individual air supply assembly
US-2024400210-A1 · Dec 5, 2024 · US
Emergency oxygen systems for internal cabins of aircraft
US-2024343390-A1 · Oct 17, 2024 · US
Smart pressure regulator for aircraft oxygen system
US-2024281009-A1 · Aug 22, 2024 · US
OBOGS controller
US-11932404-B2 · Mar 19, 2024 · US
Panel for mounting a passenger supply unit and a passenger supply unit
US-11912413-B2 · Feb 27, 2024 · US
Sustainable composite cylinder
US-2024027025-A1 · Jan 25, 2024 · US
Sustainable composite cylinder
US-2024027026-A1 · Jan 25, 2024 · US
Oxygen Pressure Relief and Ventilation System and Method
US-2023150675-A1 · May 18, 2023 · US
Compressor surge prevention control
US-11592027-B1 · Feb 28, 2023 · US
Apparatus for supplying oxygen to a vehicle user, and vehicle comprising such an apparatus
US-2023032906-A1 · Feb 2, 2023 · US
Emergency oxygen systems for internal cabins of aircraft
US-2022411062-A1 · Dec 29, 2022 · US
Redundant systems for vehicle critical systems
US-11498691-B2 · Nov 15, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B64D2231/02?
- CPC B64D2231/02 is the Cooperative Patent Classification code for “Supply or distribution systems.”
- How many patents are filed under CPC B64D2231/02 (Supply or distribution systems)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC B64D2231/02 growing?
- Publication counts under this code: 7 in 2024 vs 7 in 2025 (latest complete years).