Compositions of chloro-trifluoropropene and hexafluorobutene
US-9528038-B2 · Dec 27, 2016 · US
the change of state being from liquid to vapour or vice versa
the change of state being from liquid to vapour or vice versa · 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 | C09K5/04 |
| Official title | the change of state being from liquid to vapour or vice versa |
| Display label | the change of state being from liquid to vapour or vice versa |
| Total patents | 565 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 36 |
| 2016 | 34 |
| 2017 | 56 |
| 2018 | 66 |
| 2019 | 67 |
| 2020 | 73 |
| 2021 | 52 |
| 2022 | 64 |
| 2023 | 33 |
| 2024 | 31 |
| 2025 | 43 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for filling mixed refrigerant containing 2,3,3,3-tetrafluoropropene
US-9528735-B2 · Dec 27, 2016 · US
Working fluid for heat cycle and heat cycle system
US-2016369147-A1 · Dec 22, 2016 · US
Heat pipe with near-azeotropic binary fluid
US-2016353610-A1 · Dec 1, 2016 · US
Compositions containing tetrafluoropropene and carbon dioxide
US-2016340487-A1 · Nov 24, 2016 · US
Compositions comprising fluoroolefins and uses thereof
US-9410064-B2 · Aug 9, 2016 · US
Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene
US-9410024-B2 · Aug 9, 2016 · US
Composition comprising hfc and hfo
US-2016222271-A1 · Aug 4, 2016 · US
Composition comprising hfc and hfo
US-2016222269-A1 · Aug 4, 2016 · US
Composition comprising hfc and hfo
US-2016222270-A1 · Aug 4, 2016 · US
Composition comprising hfc and hfo
US-2016222268-A1 · Aug 4, 2016 · US
Azeotrope-like compositions of tetrafluoropropene and alcohols
US-2016184194-A1 · Jun 30, 2016 · US
Refrigerating apparatus
US-9360238-B2 · Jun 7, 2016 · US
Compositions comprising a fluoroolefin
US-2016137898-A1 · May 19, 2016 · US
Fuel cell vehicle coolant having improved storage stability and method for producing the same
US-2016141646-A1 · May 19, 2016 · US
Refrigerating apparatus
US-9335070-B2 · May 10, 2016 · US
Heat transfer compositions
US-9309450-B2 · Apr 12, 2016 · US
Stable formulated systems with chloro-3,3,3-trifluoropropene
US-2016090519-A1 · Mar 31, 2016 · US
Working fluid for heat cycle, composition for heat cycle system, and heat cycle system
US-2016075927-A1 · Mar 17, 2016 · US
Multiple heat-transfer media
US-2016059200-A1 · Mar 3, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K5/04?
- CPC C09K5/04 is the Cooperative Patent Classification code for “the change of state being from liquid to vapour or vice versa.”
- How many patents are filed under CPC C09K5/04 (the change of state being from liquid to vapour or vice versa)?
- Our database includes 565 publications tagged with this CPC code.
- Is patent activity under CPC C09K5/04 growing?
- Publication counts under this code: 31 in 2024 vs 43 in 2025 (latest complete years).