Process for the separation and purification of a mixed diol stream
US-10329230-B2 · Jun 25, 2019 · US
1,4-Butanediol; 1,3-Butanediol; 1,2-Butanediol; 2,3-Butanediol
1,4-Butanediol; 1,3-Butanediol; 1,2-Butanediol; 2,3-Butanediol · 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 | C07C31/207 |
| Official title | {1,4-Butanediol; 1,3-Butanediol; 1,2-Butanediol; 2,3-Butanediol} |
| Display label | 1,4-Butanediol; 1,3-Butanediol; 1,2-Butanediol; 2,3-Butanediol |
| Total patents | 168 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 13 |
| 2017 | 15 |
| 2018 | 21 |
| 2019 | 23 |
| 2020 | 20 |
| 2021 | 16 |
| 2022 | 14 |
| 2023 | 14 |
| 2024 | 7 |
| 2025 | 18 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process and systems for obtaining 1,4-butanediol from fermentation broths
US-2019177255-A1 · Jun 13, 2019 · US
Process for preparing ethylene glycol from a carbohydrate source
US-10294180-B2 · May 21, 2019 · US
Method for hydrogenating carboxylic acids in order to form alcohols
US-2019112245-A1 · Apr 18, 2019 · US
One vessel process for making 1,2-propanediol from a high fructose feedstock
US-10252961-B2 · Apr 9, 2019 · US
Hydrogenation or hydrogenolysis process
US-2018361357-A1 · Dec 20, 2018 · US
Method for producing 1,4-butanediol
US-10144687-B2 · Dec 4, 2018 · US
Biofuels production from bio-derived carboxylic-acid esters
US-10118886-B2 · Nov 6, 2018 · US
Process for the production of 1,4-butanediol and tetrahydrofuran from furan
US-2018282248-A1 · Oct 4, 2018 · US
Process for the separation of glycols
US-10081584-B2 · Sep 25, 2018 · US
Method for producing hydride using unsaturated compound having carbon number of 4 as raw material
US-10065938-B2 · Sep 4, 2018 · US
Process and systems for obtaining 1,4-butanediol from fermentation broths
US-2018237367-A1 · Aug 23, 2018 · US
Process for the production of 1,4-butanediol and tetrahydrofuran from furan
US-10035783-B2 · Jul 31, 2018 · US
Process for the production of 1,4-butanediol and tetrahydrofuran from furan
US-10023549-B2 · Jul 17, 2018 · US
Molecular catalysts capable of catalyzing oxidation of hydrocarbons and method for oxidizing hydrocarbons
US-10005746-B2 · Jun 26, 2018 · US
Process of separating components of a fermentation broth
US-9994505-B2 · Jun 12, 2018 · US
Method for manufacturing 2,3-butanediol
US-9975827-B2 · May 22, 2018 · US
Method for the preparation of 1,4-butane diol having an APHA color index of less than 30
US-9975829-B2 · May 22, 2018 · US
Process for the separation of 1,4-butanediol and co-products
US-9932284-B2 · Apr 3, 2018 · US
Process for manufacturing butanediol
US-9926578-B2 · Mar 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C31/207?
- CPC C07C31/207 is the Cooperative Patent Classification code for “1,4-Butanediol; 1,3-Butanediol; 1,2-Butanediol; 2,3-Butanediol.”
- How many patents are filed under CPC C07C31/207 (1,4-Butanediol; 1,3-Butanediol; 1,2-Butanediol; 2,3-Butanediol)?
- Our database includes 168 publications tagged with this CPC code.
- Is patent activity under CPC C07C31/207 growing?
- Publication counts under this code: 7 in 2024 vs 18 in 2025 (latest complete years).