C09K 2205/132
Containing nitrogen
Official title: containing nitrogen
C09K2205/132 (Containing nitrogen) appears on 116 US grants and 110 published applications in this corpus.
Search patents in C09K- Granted patents
- 116
- Published applications
- 110
- Assignees
- 57
- Inventors
- 168
- Latest grant
- 24 Mar 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 0 |
| 2003 | 5 | 2 |
| 2004 | 2 | 3 |
| 2005 | 1 | 6 |
| 2006 | 3 | 4 |
| 2007 | 2 | 4 |
| 2008 | 4 | 4 |
| 2009 | 3 | 8 |
| 2010 | 1 | 2 |
| 2011 | 7 | 4 |
| 2012 | 0 | 2 |
| 2013 | 3 | 2 |
| 2014 | 2 | 9 |
| 2015 | 4 | 3 |
| 2016 | 1 | 2 |
| 2017 | 4 | 6 |
| 2018 | 5 | 8 |
| 2019 | 3 | 4 |
| 2020 | 5 | 6 |
| 2021 | 6 | 6 |
| 2022 | 3 | 8 |
| 2023 | 6 | 9 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus for precooling hydrogen for liquefaction using external liquid nitrogen and high pressure gaseous nitrogen24 Mar 2026US 12,584,686 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- 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.
- Method and device for cooling of a superconducting cable and corresponding system7 Oct 2025US 12,437,902 B2Linde Aktiengesellschaft
- 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.
- 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.
- High-pressure fluid chromatography system using interior-to-exterior column pressure equalization26 Feb 2026US 2026/0055937 A1Supercritical Fluid Technologies, Inc.
- Dual-mixed refrigerant precooling process18 Sep 2025US 2025/0290691 A1Qatar Foundation for Education, Science and Community Development
- Working fluid for heat cycle, composition for heat cycle system and heat cycle system29 May 2025US 2025/0171670 A1AGC Inc.
- 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
- Precooling system for joule-thomson probe99US 5,758,505 ACryoGen, Inc. · 1998
- Multicomponent refrigerant cooling with internal recycle78US 6,065,305 APraxair Technology, Inc. · 2000
- Cryogenic heat exchanger57US 5,901,783 ACroyogen, Inc. · 1999
- Azeotrope-like compositions and their use56US 5,814,595 AMinnesota Mining and Manufacturing Company · 1998
- Compositions comprising a fluoroolefin50US 7,569,170 B2E. I. Du Pont de Nemours and Company · 2009