Catalyst for pyrolysis of 1,2-dichloroethane (DCE) to prepare vinyl chloride (VC) and preparation method, use, and regeneration method thereof
US-12502660-B2 · Dec 23, 2025 · US
Vinyl chloride
Vinyl chloride · 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 | C07C21/06 |
| Official title | Vinyl chloride |
| Display label | Vinyl chloride |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Regeneration method and application of nitrogen-containing carbon catalyst
US-12440829-B2 · Oct 14, 2025 · US
Process for producing vinyl chloride monomer from acetylene
US-2025230114-A1 · Jul 17, 2025 · US
Method and plant for preparing vinyl chloride from 1,2-dichloroethane
US-11845706-B2 · Dec 19, 2023 · US
Method and plant for preparing vinyl chloride from 1,2-dichloroethane
US-11820722-B2 · Nov 21, 2023 · US
Catalyst for pyrolysis of 1,2-dichloroethane (dce) to prepare vinyl chloride (vc) and preparation method, use, and regeneration method thereof
US-2023001393-A1 · Jan 5, 2023 · US
Regeneration method and application of nitrogen-containing carbon catalyst
US-2022241759-A1 · Aug 4, 2022 · US
Method and plant for preparing vinyl chloride from 1,2-dichloroethane
US-2022227689-A1 · Jul 21, 2022 · US
Method and plant for preparing vinyl chloride from 1,2-dichloroethane
US-2022227690-A1 · Jul 21, 2022 · US
Catalyst for preparing chloroethylene by cracking 1,2-dichloroethane and a preparation and regeneration method thereof
US-11338276-B2 · May 24, 2022 · US
Method for recycling catalyst in the production of chlorinated alkanes
US-11192840-B2 · Dec 7, 2021 · US
Method for recycling catalyst in the production of chlorinated alkanes
US-2021009490-A1 · Jan 14, 2021 · US
Composition containing hydrofluoroolefin compound
US-10829426-B2 · Nov 10, 2020 · US
Catalyst for preparing chloroethylene by cracking 1,2-dichloroethane and a preparation and regeneration method thereof
US-2020346195-A1 · Nov 5, 2020 · US
Process for the preparation of vinyl chloride
US-10800719-B2 · Oct 13, 2020 · US
Composition containing hydrofluoroolefin compound
US-2020031745-A1 · Jan 30, 2020 · US
Composition containing hydrofluoroolefin compound
US-10472309-B2 · Nov 12, 2019 · US
Process For The Preparation Of Vinyl Chloride
US-2019177251-A1 · Jun 13, 2019 · US
Process for the preparation of vinyl chloride
US-10239803-B2 · Mar 26, 2019 · US
Catalyst and method for its preparation
US-10202320-B2 · Feb 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C21/06?
- CPC C07C21/06 is the Cooperative Patent Classification code for “Vinyl chloride.”
- How many patents are filed under CPC C07C21/06 (Vinyl chloride)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC C07C21/06 growing?
- Publication counts under this code: 3 in 2023 vs 3 in 2025 (latest complete years).