Hydrogen supply system
US-2023416083-A1 · Dec 28, 2023 · US
Cyclic or aromatic hydrocarbons
Cyclic or aromatic hydrocarbons · 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 | C01B2203/1252 |
| Official title | Cyclic or aromatic hydrocarbons |
| Display label | Cyclic or aromatic hydrocarbons |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 12 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 14 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of chemical looping reforming at low temperatures with hydrogen from water splitting
US-11845660-B2 · Dec 19, 2023 · US
Solid acid electrochemical cells for the production of hydrogen
US-2023366109-A1 · Nov 16, 2023 · US
Hydrogen station and hydrogen producing method
US-2023356165-A1 · Nov 9, 2023 · US
Thermal integration of an electrically heated reactor
US-2023356171-A1 · Nov 9, 2023 · US
Systems and methods for production, storage, and transportation of hydrogen
US-2023212004-A1 · Jul 6, 2023 · US
Flexible method of partial oxidation
US-2023183063-A1 · Jun 15, 2023 · US
Uniform-type platinum-loaded alumina catalyst, method of producing same, and method of using same
US-2023141512-A1 · May 11, 2023 · US
Egg shell-type platinum-loaded alumina catalyst, method of producing same, and method of using same
US-2023148027-A1 · May 11, 2023 · US
Partial dehydrogenation of organic liquids
US-2023137373-A1 · May 4, 2023 · US
Method of preparing the water-gas shift catalyst, catalyst, use and process to reduce the content of carbon monoxide
US-2023059034-A1 · Feb 23, 2023 · US
Compositions, methods, and systems for microwave enhanced carbon dioxide-dehydroaromatization over multifunctional catalysts
US-2023015171-A1 · Jan 19, 2023 · US
Solar production of hydrogen using defect engineered boron-rich photocalysts
US-2023011182-A1 · Jan 12, 2023 · US
Photochemical transformation using engineered metal-free hexagonal boron nitride
US-2023010709-A1 · Jan 12, 2023 · US
Catalysts, process for obtaining and steam pre-reforming process of hydrocarbons
US-2022250906-A1 · Aug 11, 2022 · US
Process for producing diesel fuel from a biorenewable feed with recycled sulfur
US-2022112430-A1 · Apr 14, 2022 · US
Ignition method of fuel reformer using partial oxidation reaction of the fuel for SOFC fuel cell start-up
US-11239479-B2 · Feb 1, 2022 · US
Ignition method of fuel reformer using partial oxidation reaction of the fuel for sofc fuel cell start-up
US-2021305604-A1 · Sep 30, 2021 · US
Method for producing synthesis gas
US-11078077-B2 · Aug 3, 2021 · US
Combustion of spent adsorbents containing HPNA compounds in a membrane wall partial oxidation gasification reactor
US-10934498-B1 · Mar 2, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2203/1252?
- CPC C01B2203/1252 is the Cooperative Patent Classification code for “Cyclic or aromatic hydrocarbons.”
- How many patents are filed under CPC C01B2203/1252 (Cyclic or aromatic hydrocarbons)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC C01B2203/1252 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).