Oxygen scavenger powder
US-2024138447-A1 · May 2, 2024 · US
Oxygen
Oxygen · 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 | B01D2257/104 |
| Official title | Oxygen |
| Display label | Oxygen |
| Total patents | 781 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 48 |
| 2016 | 50 |
| 2017 | 58 |
| 2018 | 83 |
| 2019 | 82 |
| 2020 | 107 |
| 2021 | 79 |
| 2022 | 67 |
| 2023 | 71 |
| 2024 | 72 |
| 2025 | 60 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for purification of electronic gases and a purification device for the method
US-2024082780-A1 · Mar 14, 2024 · US
Rate/kinetic selective multiple bed adsorption process cycle
US-11883775-B2 · Jan 30, 2024 · US
Oxygen-enriched combustion for natural gas combined cycle operation
US-2024017204-A1 · Jan 18, 2024 · US
Treater Regeneration
US-2016361705-A1 · Dec 15, 2016 · US
Composite oxygen transport membrane
US-9492784-B2 · Nov 15, 2016 · US
Composite oxygen transport membrane
US-9486735-B2 · Nov 8, 2016 · US
Oxygen absorbent composition and oxygen absorbent package using the same
US-9428692-B2 · Aug 30, 2016 · US
Air-separation device, inerting device and aircraft comprising such a device
US-2016243496-A1 · Aug 25, 2016 · US
Method to regenerate oxygen traps
US-2016177458-A1 · Jun 23, 2016 · US
Absorbent- containing container
US-2016121259-A1 · May 5, 2016 · US
Insulator including gas adsorbent
US-2016069505-A1 · Mar 10, 2016 · US
Oxygen separation system and method of generating a flow of oxygen enriched gas
US-2015367275-A1 · Dec 24, 2015 · US
Gas separation device and gas separation method
US-9216374-B2 · Dec 22, 2015 · US
Aircraft Fuel Tank Flammability Reduction Method and System
US-2015360170-A1 · Dec 17, 2015 · US
Pre-Treatment of Samples by Electrochemical Removal of Dissolved Gases
US-2015343372-A1 · Dec 3, 2015 · US
Fluid separation assembly and method
US-2015344146-A1 · Dec 3, 2015 · US
Oxygen-selective adsorbent having fast adsorption rate and preparation method thereof
US-9192911-B2 · Nov 24, 2015 · US
Device for separation of oxygen and nitrogen
US-9186622-B1 · Nov 17, 2015 · US
Fuel deoxygenation and fuel tank inerting system and method
US-2015314229-A1 · Nov 5, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2257/104?
- CPC B01D2257/104 is the Cooperative Patent Classification code for “Oxygen.”
- How many patents are filed under CPC B01D2257/104 (Oxygen)?
- Our database includes 781 publications tagged with this CPC code.
- Is patent activity under CPC B01D2257/104 growing?
- Publication counts under this code: 72 in 2024 vs 60 in 2025 (latest complete years).