Method of making acrylic acid from hydroxypropionic acid
US-10487035-B2 · Nov 26, 2019 · US
by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups · 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 | C07C45/72 |
| Official title | by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups |
| Display label | by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups |
| Total patents | 93 |
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 | 11 |
| 2016 | 5 |
| 2017 | 18 |
| 2018 | 12 |
| 2019 | 16 |
| 2020 | 7 |
| 2021 | 12 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for the preparation of polysantol-type compounds
US-2019292127-A1 · Sep 26, 2019 · US
Method Of Making Acrylic Acid From Hydroxypropionic Acid
US-2019292125-A1 · Sep 26, 2019 · US
Fenfluramine compositions and methods of preparing the same
US-2019284124-A1 · Sep 19, 2019 · US
Method for the production of glycols from sorbitol
US-10414708-B2 · Sep 17, 2019 · US
Hydroformylation process
US-10407372-B2 · Sep 10, 2019 · US
Method for producing hydroxypivalaldehyde
US-10392335-B2 · Aug 27, 2019 · US
Method for the production of glycols from sorbitol
US-2019225565-A1 · Jul 25, 2019 · US
Branched trialkyl quaternary ammonium compounds
US-2019218171-A1 · Jul 18, 2019 · US
Branched trialkylamine precursors, intermediates, products made therefrom and processes of manufacture
US-2019218170-A1 · Jul 18, 2019 · US
Fenfluramine compositions and methods of preparing the same
US-10351510-B2 · Jul 16, 2019 · US
Fenfluramine compositions and methods of preparing the same
US-10351509-B2 · Jul 16, 2019 · US
Synthesis of gamma dicarbonyl and pyrrole compounds
US-10207974-B1 · Feb 19, 2019 · US
Hydroformylation process
US-2019023637-A1 · Jan 24, 2019 · US
Alumina-supported vanadium oxide dehydrogenation catalyst
US-10130936-B2 · Nov 20, 2018 · US
Process for preparing synthesis intermediates using products of natural origin and use of the intermediates obtained
US-10099987-B2 · Oct 16, 2018 · US
Brønsted-acidic fluoroalkyl phosphonates
US-2018258115-A1 · Sep 13, 2018 · US
Diastereoselective synthesis of (±)-epianastrephin, (±)-anastrephin and analogs thereof
US-10011580-B2 · Jul 3, 2018 · US
Olfactive compositions comprising cyclohexyl-alkyl carbinols
US-2018163158-A1 · Jun 14, 2018 · US
Alumina-supported vanadium oxide dehydrogenation catalyst
US-2018154338-A1 · Jun 7, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C45/72?
- CPC C07C45/72 is the Cooperative Patent Classification code for “by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups.”
- How many patents are filed under CPC C07C45/72 (by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups)?
- Our database includes 93 publications tagged with this CPC code.
- Is patent activity under CPC C07C45/72 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).