Method for producing butadiene
US-2021238111-A1 · Aug 5, 2021 · US
with zinc, cadmium or mercury
with zinc, cadmium or mercury · 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 | C07C2523/80 |
| Official title | with zinc, cadmium or mercury |
| Display label | with zinc, cadmium or mercury |
| Total patents | 103 |
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 | 6 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 12 |
| 2019 | 14 |
| 2020 | 11 |
| 2021 | 19 |
| 2022 | 13 |
| 2023 | 6 |
| 2024 | 10 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas clean-up for alkane oxidative dehydrogenation effluent
US-11078134-B2 · Aug 3, 2021 · US
Integrated capture and conversion of co2 to methane, methanol, or methanol and glycol
US-2021214287-A1 · Jul 15, 2021 · US
Controlled on-pot design of mixed copper/zinc oxides supported aluminum oxide as an efficient catalyst for conversion of syngas to heavy liquid hydrocarbons and alcohols under ambient conditions feasible for the Fischer-Tropsch synthesis
US-11045793-B1 · Jun 29, 2021 · US
Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst
US-2021187485-A1 · Jun 24, 2021 · US
Single-atom-based catalyst systems
US-2021187489-A1 · Jun 24, 2021 · US
Method for producing ferrite-based coating catalyst and method for producing butadiene by using same
US-2021114001-A1 · Apr 22, 2021 · US
Catalyst system for oxidative dehydrogenation, reactor for oxidative dehydrogenation including catalyst system, and method of performing oxidative dehydrogenation using reactor
US-10946364-B2 · Mar 16, 2021 · US
Catalyst for oxidative dehydrogenation reaction, and method for producing same
US-2021060537-A1 · Mar 4, 2021 · US
Method for producing metal complex catalyst, and metal complex catalyst produced by same
US-2021046469-A1 · Feb 18, 2021 · US
Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst
US-10888844-B2 · Jan 12, 2021 · US
Catalyst and method for producing diene compound using said catalyst
US-2020391188-A1 · Dec 17, 2020 · US
Ferrite catalyst for oxidative dehydrogenation, method of preparing ferrite catalyst, and method of preparing butadiene using ferrite catalyst
US-10843173-B2 · Nov 24, 2020 · US
Processes for improving the activity of hybrid catalysts
US-10703689-B2 · Jul 7, 2020 · US
Reactor layout for methanol production from low quality synthesis gas
US-2020131105-A1 · Apr 30, 2020 · US
Catalyst system for oxidative dehydrogenation, reactor for preparing butadiene including catalyst system, and method of preparing 1,3-butadiene
US-2020122126-A1 · Apr 23, 2020 · US
Processes for improving the activity of hybrid catalysts
US-2020123078-A1 · Apr 23, 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
Process for methanol production from low quality synthesis gas
US-10550055-B2 · Feb 4, 2020 · US
Methods for the oxidative dehydrogenation of butene to produce butadiene
US-10532963-B2 · Jan 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2523/80?
- CPC C07C2523/80 is the Cooperative Patent Classification code for “with zinc, cadmium or mercury.”
- How many patents are filed under CPC C07C2523/80 (with zinc, cadmium or mercury)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC C07C2523/80 growing?
- Publication counts under this code: 10 in 2024 vs 5 in 2025 (latest complete years).