C09K 2205/128
Perfluorinated hydrocarbons
Official title: Perfluorinated hydrocarbons (C09K2205/124, C09K2205/126 take precedence)
C09K2205/128 (Perfluorinated hydrocarbons) appears on 88 US grants and 81 published applications in this corpus.
Search patents in C09K- Granted patents
- 88
- Published applications
- 81
- Assignees
- 45
- Inventors
- 173
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 2 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 5 |
| 2020 | 3 | 20 |
| 2021 | 6 | 21 |
| 2022 | 6 | 4 |
| 2023 | 3 | 5 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition containing refrigerant, and method for stabilizing composition containing refrigerant8 Sep 2026US 12,729,331 B2Daikin Industries, Ltd.
- Refrigerant compositions5 May 2026US 12,617,990 B2Mexichem Fluor S.A. De C.V.
- Use of composition in device, device, and refrigeration cycle apparatus10 Jun 2025US 12,325,820 B2Daikin Industries, Ltd.
- Refrigerator oil, and working fluid composition for refrigerator19 Nov 2024US 12,146,117 B2Eneos Corporation
- Refrigeration cycle device for vehicle5 Mar 2024US 11,920,077 B2Daikin Industries, Ltd.
- Azeotrope or azeotrope-like compositions of trifluoroiodomethane (cf3i) and water13 Aug 2026US 2026/0233046 A1Honeywell International Inc.
- Composition for heat transfer fluid, heat transfer fluid, heat transfer apparatus, and heat transfer method9 Jul 2026US 2026/0193504 A1Daikin Industries, Ltd.
- Working medium for heat cycle, method for storing working medium for heat cycle, method for manufacturing working medium for heat cycle,composition for heat cycle system, and storage container for working medium for heat cycle28 May 2026US 2026/0146193 A1AGC Inc.
- Method for producing purified difluoromethane (hfc-32), and composition containing hfc-322 Apr 2026US 2026/0091325 A1Daikin Industries, Ltd.
- Working medium, composition for thermal cycle system, thermal cycle device, and thermal cycle method19 Mar 2026US 2026/0078291 A1AGC Inc.
Most cited
By later US patents
- Multicomponent refrigerant cooling with internal recycle78US 6,065,305 APraxair Technology, Inc. · 2000
- Fluoroiodocarbon blends as CFC and halon replacements61US 5,444,102 AIkon Corporation · 1995
- Alternative refrigerant including hexafluoropropylene53US 6,258,292 B12001
- Fluoroiodocarbon blends as CFC and halon replacements49US 5,611,210 AIkon Corporation · 1997
- Cryogenic industrial gas liquefaction with hybrid refrigeration generation48US 6,041,620 APraxair Technology, Inc. · 2000