Device for in-situ hydrogen absorption and hydrolysis hydrogen production based on magnesium-based solid hydrogen storage alloy and use thereof
US-2026001759-A1 · Jan 1, 2026 · US
containing a rare earth metal
containing a rare earth metal · 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 | C01B3/0047 |
| Official title | containing a rare earth metal |
| Display label | containing a rare earth metal |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic hydrogen storage material dehydrogenation catalyst, support for the catalyst, hydrogen-storage alloy, and process for providing high purity hydrogen gas
US-12383887-B2 · Aug 12, 2025 · US
Organic hydrogen storage material dehydrogenation catalyst, support for the catalyst, hydrogen-storage alloy, and process for providing high-purity hydrogen gas
US-12371762-B2 · Jul 29, 2025 · US
Organic hydrogen storage material dehydrogenation catalyst, support for the catalyst, hydrogen-storage alloy, and process for providing high-purity hydrogen gas
US-12365968-B2 · Jul 22, 2025 · US
Zoned reactor for the reforming of NH3
US-12285749-B2 · Apr 29, 2025 · US
A zoned reactor for the reforming of nh3
US-2025001380-A1 · Jan 2, 2025 · US
Solid hydrogen storage system
US-12066151-B2 · Aug 20, 2024 · US
Multi Tubular Metal Hydride Reactor With an Integrated Buffer Storage
US-2024190704-A1 · Jun 13, 2024 · US
Integrated system and method for hydrogen purification, storage and pressurization
US-11873221-B1 · Jan 16, 2024 · US
Integrated system and method for hydrogen purification, storage and pressurization
US-2023416086-A1 · Dec 28, 2023 · US
LITHIATION INDUCED POROUS Pd NANOPARTICLE/3D GRAPHENE AEROGEL COMPOSITE FOR HIGHLY REVERSIBLE HYDROGEN STORAGE BASED ON SPILLOVER PROCESS
US-2023150813-A1 · May 18, 2023 · US
Hydrogen supply system
US-2023141308-A1 · May 11, 2023 · US
System for storing solid state hydrogen
US-11506343-B2 · Nov 22, 2022 · US
Organic hydrogen storage raw material dehydrogenation catalyst, carrier of catalyst, hydrogen storage alloy, and method for providing high-purity hydrogen gas
US-2022315419-A1 · Oct 6, 2022 · US
Solid hydrogen storage system
US-2022299166-A1 · Sep 22, 2022 · US
Intermetallic compound, hydrogen storage/release material, catalyst and method for producing ammonia
US-11433378-B2 · Sep 6, 2022 · US
Catalyst for dehydrogenating organic hydrogen storage raw material, carrier for catalyst, hydrogen storage alloy, and method for providing high purity hydrogen
US-2022258133-A1 · Aug 18, 2022 · US
Organic hydrogen storage raw material dehydrogenation catalyst, carrier of the catalyst, hydrogen storage alloy, and method for providing high-purity hydrogen
US-2022227623-A1 · Jul 21, 2022 · US
Solid state hydrogen storage device including plate type heat exchanger
US-2021396355-A1 · Dec 23, 2021 · US
Hydrogen compressor with metal hydride
US-11204021-B2 · Dec 21, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B3/0047?
- CPC C01B3/0047 is the Cooperative Patent Classification code for “containing a rare earth metal.”
- How many patents are filed under CPC C01B3/0047 (containing a rare earth metal)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC C01B3/0047 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).