Method for synthesis of 9-cis-beta-carotene and formulations thereof
US-11142496-B2 · Oct 12, 2021 · US
by oxidation-reduction of aldehydes, e.g. Tishchenko reaction
by oxidation-reduction of aldehydes, e.g. Tishchenko reaction · 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 | C07C67/44 |
| Official title | by oxidation-reduction of aldehydes, e.g. Tishchenko reaction |
| Display label | by oxidation-reduction of aldehydes, e.g. Tishchenko reaction |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 8 |
| 2017 | 6 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 12 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 7 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparing MMA in high yields
US-2021269385-A1 · Sep 2, 2021 · US
Catalyst for the oxidative esterification of aldehydes to carboxylic esters
US-2021269386-A1 · Sep 2, 2021 · US
Method for producing a homogeneous catalyst for the tishchenko reaction
US-2021147333-A1 · May 20, 2021 · US
Heterogeneous catalyst
US-2021113997-A1 · Apr 22, 2021 · US
Biomass-derived polymers and copolymers incorporating monolignols and their derivatives
US-10941104-B2 · Mar 9, 2021 · US
Method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst
US-10829435-B2 · Nov 10, 2020 · US
Method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst
US-10800727-B2 · Oct 13, 2020 · US
Method for producing methylmethacrylate
US-10766847-B2 · Sep 8, 2020 · US
Method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst
US-10745341-B2 · Aug 18, 2020 · US
A method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst
US-2020199059-A1 · Jun 25, 2020 · US
Method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst
US-2020157037-A1 · May 21, 2020 · US
A method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst
US-2020157036-A1 · May 21, 2020 · US
Method for producing a homogeneous catalyst for the tishchenko reaction
US-2020148621-A1 · May 14, 2020 · US
Method for preparing carboxylic esters from aldehydes
US-10640448-B2 · May 5, 2020 · US
Iron-catalyzed selective production of methyl esters from aldehydes
US-10590062-B1 · Mar 17, 2020 · US
Integrated process for the preparation of compounds useful as fuel components
US-10590356-B2 · Mar 17, 2020 · US
Process for the production of esters
US-10577305-B1 · Mar 3, 2020 · US
Method for synthesis of 9-cis-beta-carotene and formulations thereof
US-2019367451-A1 · Dec 5, 2019 · US
Synthesis of methacrylic acid from methacrolein-based alkyl methacrylate
US-10479754-B2 · Nov 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C67/44?
- CPC C07C67/44 is the Cooperative Patent Classification code for “by oxidation-reduction of aldehydes, e.g. Tishchenko reaction.”
- How many patents are filed under CPC C07C67/44 (by oxidation-reduction of aldehydes, e.g. Tishchenko reaction)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC C07C67/44 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).