Process to synthesize a catalyst performing water-gas shift reaction at a high temperature
US-2017348675-A1 · Dec 7, 2017 · US
Boron or aluminium; Oxides or hydroxides thereof
Boron or aluminium; Oxides or hydroxides thereof · 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 | B01J21/02 |
| Official title | Boron or aluminium; Oxides or hydroxides thereof |
| Display label | Boron or aluminium; Oxides or hydroxides thereof |
| Total patents | 407 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 24 |
| 2017 | 35 |
| 2018 | 43 |
| 2019 | 49 |
| 2020 | 42 |
| 2021 | 47 |
| 2022 | 42 |
| 2023 | 37 |
| 2024 | 39 |
| 2025 | 22 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mixed metal oxide composite for oxygen storage
US-2017333877-A1 · Nov 23, 2017 · US
Catalytic adsorbents obtained from municipal sludges, industrial sludges, compost and tobacco waste and process for their production
US-9808761-B2 · Nov 7, 2017 · US
Process for producing light olefins
US-2017305815-A1 · Oct 26, 2017 · US
Structure for holding catalyst particles for carbon nanotube production and method for producing same
US-2017283264-A1 · Oct 5, 2017 · US
High temperature layered mixed-metal oxide materials with enhanced stability
US-2017266642-A1 · Sep 21, 2017 · US
High aspect ratio layered double hydroxide materials and methods for preparation thereof
US-2017267623-A1 · Sep 21, 2017 · US
Catalyst for the oxidation of CO and HC at low temperatures
US-9757712-B2 · Sep 12, 2017 · US
METHODS FOR GAS PHASE OXIDATIVE DESULPHURIZATION OF HYDROCARBONS USING CuZnAl CATALYSTS PROMOTED WITH GROUP VIB METAL OXIDES
US-2017190641-A1 · Jul 6, 2017 · US
Hydroprocessing co-catalyst compositions and methods of introduction thereof into hydroprocessing units
US-9687823-B2 · Jun 27, 2017 · US
Environmentally friendly stable catalysts for electroless metallization of printed circuit boards and through-holes
US-2017171988-A1 · Jun 15, 2017 · US
Cracking catalyst composition for cracking of heavy hydrocarbon feed stocks and process for preparing the same
US-2017144140-A1 · May 25, 2017 · US
Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (zvi) in pironox process
US-2017129792-A1 · May 11, 2017 · US
High Al-content steel sheet excellent in workability and method of production of same
US-9616411-B2 · Apr 11, 2017 · US
Heterogeneous catalysts for the oxidative dehydrogenation of alkanes or oxidative coupling of methane
US-2017066700-A1 · Mar 9, 2017 · US
Olefin production method
US-9567266-B2 · Feb 14, 2017 · US
Catalyst preparation method
US-2016375426-A1 · Dec 29, 2016 · US
Selective hydrogenation catalyst and methods of making and using same
US-9511359-B2 · Dec 6, 2016 · US
Method for preparing graphene
US-2016318765-A1 · Nov 3, 2016 · US
Catalyst preparation method
US-9463441-B2 · Oct 11, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J21/02?
- CPC B01J21/02 is the Cooperative Patent Classification code for “Boron or aluminium; Oxides or hydroxides thereof.”
- How many patents are filed under CPC B01J21/02 (Boron or aluminium; Oxides or hydroxides thereof)?
- Our database includes 407 publications tagged with this CPC code.
- Is patent activity under CPC B01J21/02 growing?
- Publication counts under this code: 39 in 2024 vs 22 in 2025 (latest complete years).