Processes for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene and intermediates for producing same
US-12421180-B2 · Sep 23, 2025 · US
containing carbon-to-carbon triple bonds
containing carbon-to-carbon triple bonds · 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 | C07C21/22 |
| Official title | containing carbon-to-carbon triple bonds |
| Display label | containing carbon-to-carbon triple bonds |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing fluoroalkyne compound
US-2024076253-A1 · Mar 7, 2024 · US
Processes for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene and intermediates for producing same
US-11912639-B2 · Feb 27, 2024 · US
Methods for producing halogenated alkene compound and fluorinated alkyne compound
US-2023242466-A1 · Aug 3, 2023 · US
Methods for producing halogenated alkene compound and fluorinated alkyne compound
US-11655199-B2 · May 23, 2023 · US
Azeotrope or azeotrope-like compositions of 3,3,3-trifluoropropyne (tfpy) and hydrogen fluoride (hf)
US-2022363968-A1 · Nov 17, 2022 · US
Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system
US-11440862-B2 · Sep 13, 2022 · US
Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system
US-11427521-B2 · Aug 30, 2022 · US
Processes for producing z-1,1,1,4,4,4-hexafluorobut-2-ene and intermediates for producing same
US-2022194879-A1 · Jun 23, 2022 · US
Processes for producing z-1,1,1,4,4,4-hexafluorobut-2-ene and intermediates for producing same
US-2022194881-A1 · Jun 23, 2022 · US
Plasma etching method and plasma etching apparatus
US-2022084835-A1 · Mar 17, 2022 · US
Methods for producing halogenated alkene compound and fluorinated alkyne compound
US-2021380506-A1 · Dec 9, 2021 · US
Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system
US-2021188745-A1 · Jun 24, 2021 · US
Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system
US-10975008-B2 · Apr 13, 2021 · US
Process for reducing 3,3,3-trifluoropropyne in 2,3,3,3-tetrafluoropropene
US-10913697-B2 · Feb 9, 2021 · US
Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system
US-2020407297-A1 · Dec 31, 2020 · US
Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system
US-10807926-B2 · Oct 20, 2020 · US
Compound having naphthalene ring, liquid crystal composition and liquid crystal display device
US-10676669-B2 · Jun 9, 2020 · US
Solvent composition, cleaning method, method of forming a coating film, heat transfer fluid, and heat cycle system
US-2020087231-A1 · Mar 19, 2020 · US
Process for reducing 3,3,3-trifluoropropyne in 2,3,3,3-tetrafluoropropene
US-2020055804-A1 · Feb 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C21/22?
- CPC C07C21/22 is the Cooperative Patent Classification code for “containing carbon-to-carbon triple bonds.”
- How many patents are filed under CPC C07C21/22 (containing carbon-to-carbon triple bonds)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC C07C21/22 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).