Robust catalyst for hydrogen production from p-formaldehyde
US-2018265355-A1 · Sep 20, 2018 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B3/22 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 219 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 16 |
| 2017 | 21 |
| 2018 | 21 |
| 2019 | 28 |
| 2020 | 15 |
| 2021 | 10 |
| 2022 | 21 |
| 2023 | 23 |
| 2024 | 15 |
| 2025 | 20 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrogen production catalyst containing Ni3Si-based intermetallic compound, method for activating the catalyst, and hydrogen production method and device using the catalyst
US-9833773-B2 · Dec 5, 2017 · US
Catalysts and methods for converting carbonaceous materials to fuels
US-9803142-B1 · Oct 31, 2017 · US
Catalysts and methods for converting carbonaceous materials to fuels
US-2017306244-A1 · Oct 26, 2017 · US
Dehydrogenation of neat formic acid
US-2017305947-A1 · Oct 26, 2017 · US
Catalysts and methods for converting carbonaceous materials to fuels
US-9796931-B1 · Oct 24, 2017 · US
Efficient Catalytic Greenhouse Gas-Free Hydrogen and Aldehyde Formation from Alcohols
US-2017297988-A1 · Oct 19, 2017 · US
Synthesis of fuels and feedstocks
US-9783477-B2 · Oct 10, 2017 · US
Catalyst Support, Recycle Reactor and Method for Releasing Hydrogen
US-2017283258-A1 · Oct 5, 2017 · US
Photocatalytic reactors and related methods
US-2017274345-A1 · Sep 28, 2017 · US
Method for organic compound degradation and method for producing hydrogen
US-9771262-B1 · Sep 26, 2017 · US
Photocatalytic composition that comprises metal particles and two semiconductors including one made of indium oxide
US-2017239647-A1 · Aug 24, 2017 · US
Photocatalytic composition comprising metallic particles and two semiconductors, one of which is composed of cerium oxide
US-2017216823-A1 · Aug 3, 2017 · US
Highly Robust Efficient Catalyst For Selective Dehydrogenation Of Neat Glycerol To Lactic Acid
US-2017217870-A1 · Aug 3, 2017 · US
Scalable Multiple-Inverse Diffusion Flame Burner for Synthesis and Processing of Carbon-Based and Other Nanostructured Materials and Films and Fuels
US-2017210628-A1 · Jul 27, 2017 · US
Catalysts and methods for converting carbonaceous materials to fuels
US-9714387-B2 · Jul 25, 2017 · US
Method and apparatus for generating hydrogen from formic acid
US-2017197828-A1 · Jul 13, 2017 · US
Dihydrogen Production Process
US-2017144884-A1 · May 25, 2017 · US
Sulfur composites and polymeric materials from elemental sulfur
US-9567439-B1 · Feb 14, 2017 · US
Processes for producing hydrocarbon products
US-2017037320-A1 · Feb 9, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B3/22?
- CPC C01B3/22 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B3/22 (Chemistry & Metallurgy)?
- Our database includes 219 publications tagged with this CPC code.
- Is patent activity under CPC C01B3/22 growing?
- Publication counts under this code: 15 in 2024 vs 20 in 2025 (latest complete years).