Methods for making linear internal olefins from mixtures of linear and branched olefins
US-2024051900-A1 · Feb 15, 2024 · US
by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds · 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 | C07C67/04 |
| Official title | by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds |
| Display label | by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds |
| Total patents | 96 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 19 |
| 2017 | 14 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 5 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 6 |
| 2024 | 9 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methoxycarbonylation with formic acid and methanol
US-10508071-B2 · Dec 17, 2019 · US
Methoxycarbonylation with formic acid as CO source
US-10407375-B2 · Sep 10, 2019 · US
Complex comprising oxidative dehydrogenation unit
US-10357754-B2 · Jul 23, 2019 · US
Integrated process for the production of partial oxidation product derivatives
US-10351505-B2 · Jul 16, 2019 · US
Cyclohexanol ethers as mediterranean fruit fly attractants
US-10343974-B1 · Jul 9, 2019 · US
Methoxycarbonylation with formic acid as co source
US-2019047935-A1 · Feb 14, 2019 · US
Methoxycarbonylation with formic acid and methanol
US-2019047936-A1 · Feb 14, 2019 · US
Process for the synthesis of acrylic acid oligomers
US-10183907-B2 · Jan 22, 2019 · US
Production of tert-butyl esters of ethylenically unsaturated carboxylic acids
US-2019002389-A1 · Jan 3, 2019 · US
Synthesis of hypervalent iodine reagents with dioxygen
US-2019002487-A1 · Jan 3, 2019 · US
Integrated Process for the Production of Partial Oxidation Product Derivatives
US-2018334422-A1 · Nov 22, 2018 · US
Process for the synthesis of acrylic acid oligomers
US-2018265447-A1 · Sep 20, 2018 · US
Polyol estolides and methods of making and using the same
US-10065918-B2 · Sep 4, 2018 · US
Concerted processes for forming 1,2,4-trihydroxybenzene from hydroquinone
US-10065977-B2 · Sep 4, 2018 · US
Complex comprising oxidative dehydrogenation unit
US-2018236432-A1 · Aug 23, 2018 · US
Preparation of tert-butyl esters of aliphatic carboxylic acids
US-10023520-B2 · Jul 17, 2018 · US
Complex comprising oxidative dehydrogenation unit
US-9993798-B2 · Jun 12, 2018 · US
Concerted processes for forming 1,2,4-trihydroxybenzene from hydroquinone
US-2018105544-A1 · Apr 19, 2018 · US
Method for preparing (meth)acrylates of biobased alcohols and polymers thereof
US-9908837-B2 · Mar 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C67/04?
- CPC C07C67/04 is the Cooperative Patent Classification code for “by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds.”
- How many patents are filed under CPC C07C67/04 (by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds)?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC C07C67/04 growing?
- Publication counts under this code: 9 in 2024 vs 4 in 2025 (latest complete years).