C09K 2205/13
Inert gases
C09K2205/13 (Inert gases) appears on 52 US grants and 44 published applications in this corpus.
Search patents in C09K- Granted patents
- 52
- Published applications
- 44
- Assignees
- 34
- Inventors
- 100
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 4 |
| 2003 | 3 | 3 |
| 2004 | 1 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 3 | 3 |
| 2018 | 3 | 5 |
| 2019 | 0 | 2 |
| 2020 | 1 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Working fluid for heat cycle, composition for heat cycle system and heat cycle system6 Jan 2026US 12,516,231 B2AGC Inc.
- High-pressure fluid chromatography system using interior-to-exterior column pressure equalization4 Nov 2025US 12,460,842 B2Supercritical Fluid Technologies, Inc.
- Cooling loop with a supercritical fluid system using compressed refrigerant fluid flow with a positive Joule Thomson coefficient27 Feb 2024US 11,913,685 B2Supercritical Fluid Technologies, Inc.
- Supercritical fluid chromatography system20 Jun 2023US 11,680,735 B2Supercritical Fluid Technologies, Inc.
- Low-temperature mixed-refrigerant for hydrogen precooling in large scale24 May 2022US 11,340,012 B2Linde Aktiengesellschaft
- High-pressure fluid chromatography system using interior-to-exterior column pressure equalization26 Feb 2026US 2026/0055937 A1Supercritical Fluid Technologies, Inc.
- Mixed Refrigerant Composition and Heat Pump Including the Same25 Dec 2025US 2025/0388795 A1SK Enmove Co., Ltd.
- Working fluid for heat cycle, composition for heat cycle system and heat cycle system29 May 2025US 2025/0171670 A1AGC Inc.
- Mixed refrigerant composition and heat pump including the same7 Nov 2024US 2024/0368445 A1SK Enmove Co., Ltd.
- Cooling loop with a supercritical fluid system using compressed refrigerant fluid flow with a positive joule thomson coefficient25 Jul 2024US 2024/0247843 A1Supercritical Fluid Technologies, Inc.
Most cited
By later US patents
- Variable load refrigeration system particularly for cryogenic temperatures102US 6,076,372 APraxair Technology, Inc. · 2000
- Precooling system for joule-thomson probe99US 5,758,505 ACryoGen, Inc. · 1998
- Method for providing refrigeration82US 6,176,102 B1Praxair Technology, Inc. · 2001
- Multicomponent refrigerant cooling with internal recycle78US 6,065,305 APraxair Technology, Inc. · 2000
- Food freezing method using a multicomponent refrigerant66US 6,327,866 B1Praxair Technology, Inc. · 2001