Separation method and production method of branched diolefin
US-2022185747-A1 · Jun 16, 2022 · US
Isoprene
Isoprene · 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 | C07C11/18 |
| Official title | Isoprene |
| Display label | Isoprene |
| Total patents | 76 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 10 |
| 2017 | 7 |
| 2018 | 16 |
| 2019 | 9 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing conjugated diene
US-11319261-B2 · May 3, 2022 · US
Systems and methods for isoprene purification
US-2022033329-A1 · Feb 3, 2022 · US
Method for producing conjugated diene
US-11198657-B2 · Dec 14, 2021 · US
Systems and methods for isoprene purification
US-11168042-B2 · Nov 9, 2021 · US
Method for separating materials by means of an extractive distillation process
US-10793494-B2 · Oct 6, 2020 · US
Compositions and methods for producing isoprene free of c5 hydrocarbons under decoupling conditions and/or safe operating ranges
US-10774345-B2 · Sep 15, 2020 · US
Systems and methods for isoprene purification
US-2020055802-A1 · Feb 20, 2020 · US
Method for improved reactive monomer production with membrane filtration
US-10532320-B2 · Jan 14, 2020 · US
Mutant polypeptides and uses thereof
US-10519433-B2 · Dec 31, 2019 · US
Mutant polypeptides and uses thereof
US-2019300871-A1 · Oct 3, 2019 · US
Fermentation hydrocarbon gas products separation via membrane
US-10427996-B2 · Oct 1, 2019 · US
Methods, cells and reagents for production of isoprene, derivatives and intermediates thereof
US-2019271009-A1 · Sep 5, 2019 · US
Method for producing conjugated diene
US-2019135714-A1 · May 9, 2019 · US
Offgas stream direct contact condenser
US-10252957-B2 · Apr 9, 2019 · US
Mutant polypeptides and uses thereof
US-10214736-B2 · Feb 26, 2019 · US
Methods, cells and reagents for production of isoprene, derivatives and intermediates thereof
US-2019017076-A1 · Jan 17, 2019 · US
Methods, cells and reagents for production of isoprene, derivatives and intermediates thereof
US-10167487-B2 · Jan 1, 2019 · US
Method for collecting isoprenoid compound contained in fermented gas, and method for producing purified isoprenoid compound
US-10144684-B2 · Dec 4, 2018 · US
Method for collecting isoprene contained in fermented gas, and method for producing purified isoprene
US-10144683-B2 · Dec 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C11/18?
- CPC C07C11/18 is the Cooperative Patent Classification code for “Isoprene.”
- How many patents are filed under CPC C07C11/18 (Isoprene)?
- Our database includes 76 publications tagged with this CPC code.
- Is patent activity under CPC C07C11/18 growing?
- Publication counts under this code: 2 in 2024 vs 6 in 2025 (latest complete years).