Catalyst for methanation of carbon dioxide, preparation method and usage thereof
US-9527783-B2 · Dec 27, 2016 · US
Nickel
Nickel · 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 | C07C2523/755 |
| Official title | Nickel |
| Display label | Nickel |
| Total patents | 539 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 49 |
| 2016 | 47 |
| 2017 | 59 |
| 2018 | 47 |
| 2019 | 53 |
| 2020 | 56 |
| 2021 | 49 |
| 2022 | 50 |
| 2023 | 49 |
| 2024 | 42 |
| 2025 | 27 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for producing an si-bonded fluidized-bed catalyst
US-9486796-B2 · Nov 8, 2016 · US
Metal catalyst composition
US-9403150-B2 · Aug 2, 2016 · US
Process for producing phenol
US-9340474-B2 · May 17, 2016 · US
Organic Semiconductor Film, Method for Manufacturing Same, and Transistor Structure
US-2016118589-A1 · Apr 28, 2016 · US
Ethylene-to-liquids systems and methods
US-9321702-B2 · Apr 26, 2016 · US
Ethylene-to-liquids systems and methods
US-9321703-B2 · Apr 26, 2016 · US
Selective alkane activation with single-site atoms on amorphous support
US-2016074838-A1 · Mar 17, 2016 · US
Methanation Catalyst
US-2016052837-A1 · Feb 25, 2016 · US
Phosphine ligands for catalytic reactions
US-9266913-B2 · Feb 23, 2016 · US
Method for producing conjugated diolefin and apparatus for production
US-9255041-B2 · Feb 9, 2016 · US
Reactor for dehydrogenation of organic compound, hydrogen production apparatus, and hydrogen production process
US-9206046-B2 · Dec 8, 2015 · US
Use of a metallocene catalyst to produce a polyalpha-olefin
US-2015344598-A1 · Dec 3, 2015 · US
Preparation of high-quality oxo process alcohols from inconstant raw material sources
US-2015336861-A1 · Nov 26, 2015 · US
Selective alkane activation with single-site atoms on amorphous support
US-9192919-B2 · Nov 24, 2015 · US
Catalyst For Production Of Butadiene, Process For Producing The Catalyst, And Process For Producing Butadiene Using The Catalyst
US-2015328623-A1 · Nov 19, 2015 · US
Ethylene-to-liquids systems and methods
US-2015329438-A1 · Nov 19, 2015 · US
Ethylene-to-liquids systems and methods
US-2015329439-A1 · Nov 19, 2015 · US
Method for producing hydrocarbons from biomass or organic waste
US-9187767-B2 · Nov 17, 2015 · US
Hydroalkylating process
US-9169170-B2 · Oct 27, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2523/755?
- CPC C07C2523/755 is the Cooperative Patent Classification code for “Nickel.”
- How many patents are filed under CPC C07C2523/755 (Nickel)?
- Our database includes 539 publications tagged with this CPC code.
- Is patent activity under CPC C07C2523/755 growing?
- Publication counts under this code: 42 in 2024 vs 27 in 2025 (latest complete years).