Selective hydroxyl group removal from alkylphenols
US-12116327-B2 · Oct 15, 2024 · US
and nickel
and 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 | C07C2523/883 |
| Official title | and nickel |
| Display label | and nickel |
| Total patents | 66 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 8 |
| 2021 | 1 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of Improving Selective Hydrogenation of Unsaturated Hydrocarbon in Aromatic Fraction Through Catalyst Pretreatment
US-2024299912-A1 · Sep 12, 2024 · US
Method of improving selective hydrogenation of unsaturated hydrocarbon in aromatic fraction through catalyst pretreatment
US-12011709-B2 · Jun 18, 2024 · US
Sequential and independent synthesis of mercaptans and asymmetrical sulfides in a single reactor
US-2024051918-A1 · Feb 15, 2024 · US
Process for Reducing Unsaturated Hydrocarbons in Aromatic Fraction Through Selective Hydrogenation
US-2024018422-A1 · Jan 18, 2024 · US
Process for reducing unsaturated hydrocarbons in aromatic fraction through selective hydrogenation
US-11802248-B2 · Oct 31, 2023 · US
Methods and systems for upgrading crude oils, heavy oils, and residues
US-11680028-B2 · Jun 20, 2023 · US
Method of Improving Selective Hydrogenation of Unsaturated Hydrocarbon in Aromatic Fraction Through Catalyst Pretreatment
US-2023158478-A1 · May 25, 2023 · US
Method of producing 1,3-butadiene
US-2023062963-A1 · Mar 2, 2023 · US
Process for producing compounds, including triptane by an alcohol coupling reaction
US-2023002295-A1 · Jan 5, 2023 · US
Coupling of unit for extracting methyl-substituted aromatics with unit for hydrogenolysing alkyl-aromatics
US-11492311-B2 · Nov 8, 2022 · US
Method for producing 1,3-butadiene
US-2022289646-A1 · Sep 15, 2022 · US
Process for Reducing Unsaturated Hydrocarbons in Aromatic Fraction Through Selective Hydrogenation
US-2022073440-A1 · Mar 10, 2022 · US
Selective hydroxyl group removal from alkylphenols
US-2022064079-A1 · Mar 3, 2022 · US
Coupling of unit for extracting methyl-substituted aromatics with unit for hydrogenolysing alkyl-aromatics
US-2022064086-A1 · Mar 3, 2022 · US
Methods and systems for upgrading crude oils, heavy oils, and residues
US-2022064084-A1 · Mar 3, 2022 · US
Production process of 1,3-butadiene
US-11230513-B2 · Jan 25, 2022 · US
Reactor for non-oxidative direct conversion of methane and method of manufacturing ethylene and aromatic compound using same
US-11028026-B2 · Jun 8, 2021 · US
Production process of 1,3-butadiene
US-2020399191-A1 · Dec 24, 2020 · US
Hydrodeoxigenation process of vegetable oils for obtaining green diesel
US-10858594-B2 · Dec 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2523/883?
- CPC C07C2523/883 is the Cooperative Patent Classification code for “and nickel.”
- How many patents are filed under CPC C07C2523/883 (and nickel)?
- Our database includes 66 publications tagged with this CPC code.
- Is patent activity under CPC C07C2523/883 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).