Microorganisms for the production of 1,4-butanediol and related methods
US-2019376095-A1 · Dec 12, 2019 · US
Preparation of tetrahydrofuran
Preparation of tetrahydrofuran · 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 | C07D307/08 |
| Official title | Preparation of tetrahydrofuran |
| Display label | Preparation of tetrahydrofuran |
| Total patents | 91 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 15 |
| 2017 | 9 |
| 2018 | 15 |
| 2019 | 15 |
| 2020 | 12 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Purification methods
US-2019202767-A1 · Jul 4, 2019 · US
1-(cyclopent-2-en-1-yl)-3-(2-hydroxy-3-(arylsulfonyl)phenyl)urea derivatives as CXCR2 inhibitors
US-10336719-B2 · Jul 2, 2019 · US
Microorganisms for the production of 1,4-butanediol and related methods
US-10273508-B2 · Apr 30, 2019 · US
Conversion of Biomass
US-2019084951-A1 · Mar 21, 2019 · US
Nematocidal heterocyclic amides
US-2019014779-A1 · Jan 17, 2019 · US
Catalysts for hydrodeoxygenation of oxygenated hydrocarbons
US-10131604-B2 · Nov 20, 2018 · US
Biofuels production from bio-derived carboxylic-acid esters
US-10118886-B2 · Nov 6, 2018 · US
1-(cyclopent-2-en-1-yl)-3-(2-hydroxy-3-(arylsulfonyl)phenyl)urea derivatives as CXCR2 inhibitors
US-10106515-B2 · Oct 23, 2018 · US
Production of furans
US-10100025-B2 · Oct 16, 2018 · US
Process for the production of 1,4-butanediol and tetrahydrofuran from furan
US-2018282248-A1 · Oct 4, 2018 · US
Process for the production of 1,4-butanediol and tetrahydrofuran from furan
US-2018251438-A1 · Sep 6, 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
Process for the production of 1,4-butanediol and tetrahydrofuran from furan
US-2018186760-A1 · Jul 5, 2018 · US
Synthesis of liquid fuels and chemicals from oxygenated hydrocarbons
US-9944869-B2 · Apr 17, 2018 · US
Process for the separation of 1,4-butanediol and co-products
US-9932284-B2 · Apr 3, 2018 · US
Process for the production of 1,4-butanediol and tetrahydrofuran from furan
US-2018072692-A1 · Mar 15, 2018 · US
Hydrogenation products from biologically-derived carboxylic-acid esters
US-9914713-B2 · Mar 13, 2018 · US
Flexible chemical production platform
US-2018029005-A1 · Feb 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D307/08?
- CPC C07D307/08 is the Cooperative Patent Classification code for “Preparation of tetrahydrofuran.”
- How many patents are filed under CPC C07D307/08 (Preparation of tetrahydrofuran)?
- Our database includes 91 publications tagged with this CPC code.
- Is patent activity under CPC C07D307/08 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).