Dehydrogenation and pyrolysis product recovery with a common depropanizer
US-2024165534-A1 · May 23, 2024 · US
with four carbon atoms
with four carbon atoms · 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 | C07C9/10 |
| Official title | with four carbon atoms |
| Display label | with four carbon atoms |
| Total patents | 72 |
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 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 15 |
| 2020 | 8 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 10 |
| 2024 | 8 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Energy-efficient process for removing butenes from C4-hydrocarbon streams and subsequent n/iso separation
US-11945777-B2 · Apr 2, 2024 · US
Processes integrating hydrocarbon cracking with metathesis for producing propene
US-2024076251-A1 · Mar 7, 2024 · US
Processes integrating hydrocarbon cracking with metathesis for producing propene
US-11845705-B2 · Dec 19, 2023 · US
Energy-efficient process for removing butenes from c4-hydrocarbon streams and subsequent n/iso separation
US-2023391690-A1 · Dec 7, 2023 · US
Production of bio-based liquefied petroleum gas
US-2023340349-A1 · Oct 26, 2023 · US
Method of refining raffinate-2
US-11746072-B2 · Sep 5, 2023 · US
Heat integration via heat pump on a bottom dividing wall column
US-2023201740-A1 · Jun 29, 2023 · US
Production of bio-based liquefied petroleum gas
US-11680216-B2 · Jun 20, 2023 · US
Method of producing a fuel additive
US-11613717-B2 · Mar 28, 2023 · US
Processes integrating hydrocarbon cracking with metathesis for producing propene
US-2023093607-A1 · Mar 23, 2023 · US
Process for removing olefins from normal paraffins in an isomerization effluent stream
US-11597883-B2 · Mar 7, 2023 · US
Systems and methods for enhancing the extractive section operability and modifying solvent heat recovery cycle in the separation of c4 mixtures
US-2023064093-A1 · Mar 2, 2023 · US
Integration of a steam cracker with acid alkylation
US-11530172-B2 · Dec 20, 2022 · US
Process for removing olefins from normal paraffins in an isomerization effluent stream
US-2022389335-A1 · Dec 8, 2022 · US
Acidic catalyst
US-11376573-B2 · Jul 5, 2022 · US
Method of producing a fuel additive
US-2022185750-A1 · Jun 16, 2022 · US
Integration of a Steam Cracker with Acid Alkylation
US-2022153658-A1 · May 19, 2022 · US
METHOD TO PRODUCE LIGHT HYDROCARBONS BY COx HYDROGENATION IN A DIELECTRIC BARRIER DISCHARGE PLASMA REACTOR SYSTEM
US-2022070993-A1 · Mar 3, 2022 · US
Method of refining raffinate-2
US-2021363075-A1 · Nov 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C9/10?
- CPC C07C9/10 is the Cooperative Patent Classification code for “with four carbon atoms.”
- How many patents are filed under CPC C07C9/10 (with four carbon atoms)?
- Our database includes 72 publications tagged with this CPC code.
- Is patent activity under CPC C07C9/10 growing?
- Publication counts under this code: 8 in 2024 vs 6 in 2025 (latest complete years).