Supported catalyst and method for preparing light olefin using direct conversion of syngas
US-2021347710-A1 · Nov 11, 2021 · US
Arsenic, antimony or bismuth
Arsenic, antimony or bismuth · 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 | C07C2523/18 |
| Official title | Arsenic, antimony or bismuth |
| Display label | Arsenic, antimony or bismuth |
| Total patents | 80 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 14 |
| 2017 | 2 |
| 2018 | 12 |
| 2019 | 7 |
| 2020 | 11 |
| 2021 | 7 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Oxidation of alkane to alkene
US-11078136-B2 · Aug 3, 2021 · US
Oxidizing liquid media for chemical transformations
US-2021163503-A1 · Jun 3, 2021 · US
Mesoporous composite catalysts containing bismuth silicate and transition metal oxide
US-2021154646-A1 · May 27, 2021 · US
Direct oxidation of olefins to oxygenated species
US-10858301-B2 · Dec 8, 2020 · US
Catalysts for petrochemical catalysis
US-2020377429-A1 · Dec 3, 2020 · US
Catalyst containing lf-type b acid and method for preparing ethylene using direct conversion of syngas
US-2020346993-A1 · Nov 5, 2020 · US
Organic base modified composite catalyst and method for producing ethylene by hydrogenation of carbon monoxide
US-2020346992-A1 · Nov 5, 2020 · US
Preparation and use of phenylstyrene
US-10787399-B2 · Sep 29, 2020 · US
Catalysts for petrochemical catalysis
US-10654769-B2 · May 19, 2020 · US
Method for producing butadiene
US-10647638-B2 · May 12, 2020 · US
Direct oxidation of olefins to oxygenated species
US-2020095183-A1 · Mar 26, 2020 · US
Oxidation of alkane to alkene
US-2020095179-A1 · Mar 26, 2020 · US
A method for the production of high purity butadiene and n-butene from n-butane using an oxidative dehydrogenation process in a continuous-flow multi-layer-catalyst fixed-bed reactor
US-2020079710-A1 · Mar 12, 2020 · US
Catalytic oxidation method and method for producing conjugated diene
US-2020001262-A1 · Jan 2, 2020 · US
Ethane oxidative dehydrogenation and acetic acid recovery
US-10427992-B2 · Oct 1, 2019 · US
Method for producing 1,3-butadiene by dehydrogenating n-butenes, a material flow containing butanes and 2-butenes being provided
US-10384990-B2 · Aug 20, 2019 · US
Method of forming a catalyst with an ion-modified binder
US-10369552-B2 · Aug 6, 2019 · US
Method for production of conjugated diolefin
US-10329224-B2 · Jun 25, 2019 · US
Catalysts for petrochemical catalysis
US-2019077728-A1 · Mar 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2523/18?
- CPC C07C2523/18 is the Cooperative Patent Classification code for “Arsenic, antimony or bismuth.”
- How many patents are filed under CPC C07C2523/18 (Arsenic, antimony or bismuth)?
- Our database includes 80 publications tagged with this CPC code.
- Is patent activity under CPC C07C2523/18 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).