C09K 5/18
Non-reversible chemical reactions
C09K5/18 (Non-reversible chemical reactions) appears on 122 US grants and 183 published applications in this corpus.
Search patents in C09K- Granted patents
- 122
- Published applications
- 183
- Assignees
- 83
- Inventors
- 312
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 12 | 3 |
| 2002 | 3 | 11 |
| 2003 | 7 | 4 |
| 2004 | 4 | 10 |
| 2005 | 4 | 8 |
| 2006 | 3 | 6 |
| 2007 | 2 | 23 |
| 2008 | 3 | 17 |
| 2009 | 3 | 15 |
| 2010 | 4 | 8 |
| 2011 | 9 | 3 |
| 2012 | 2 | 7 |
| 2013 | 6 | 15 |
| 2014 | 5 | 6 |
| 2015 | 7 | 3 |
| 2016 | 6 | 5 |
| 2017 | 3 | 7 |
| 2018 | 4 | 3 |
| 2019 | 5 | 3 |
| 2020 | 2 | 5 |
| 2021 | 4 | 2 |
| 2022 | 2 | 7 |
| 2023 | 4 | 2 |
| 2024 | 4 | 1 |
| 2025 | 1 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Temperature control agent, and heating composition, packaging material, and warming material each comprising same17 Feb 2026US 12,551,367 B2Ferric Inc.
- Flameless method of heating food or food containers20 Jan 2026US 12,528,981 B2Forever Young International, Inc.
- Disposable baby bottle warmer for use anywhere18 Feb 2025US 12,226,046 B2Tempra Technology, Inc.
- System and method of snow conversion1 Oct 2024US 12,104,340 B2
- Temperature control agent, and heat-generating composition and warming device each using same23 Jul 2024US 12,042,427 B2Ferric Inc.
- Coolant and method for producing coolant1 Oct 2026US 2026/0297412 A1Mitsubishi Gas Chemical Company, Inc.
- Self heating material24 Sep 2026US 2026/0286206 A1The Aerospace Corporation
- Thermochemical energy storage system using earth-abundant materials triggered by addition of water and method therefor27 Aug 2026US 2026/0251401 A1Earthermic Technologies, Inc.
- Expandable exothermic gel compositions and methods of use23 Jul 2026US 2026/0209591 A1Forever Young International, Inc.
- Iron-based powder for oxygen reactant and oxygen reactant9 Oct 2025US 2025/0312768 A1Jfe Steel Corporation
Most cited
By later US patents
- Chemical heat source for use in smoking articles254US 7,290,549 B2R. J. Reynolds Tobacco Company · 2007
- Self-regulating heat pack123US 5,984,953 ATempra Technology, Inc. · 1999
- Self-contained heating unit and drug-supply unit employing same102US 8,387,612 B2Alexza Pharmaceuticals, Inc. · 2013
- Heat cells88US 5,984,995 AThe Procter & Gamble Company · 1999
- Exothermic composition and warming bag containing the same75US 4,268,272 A1981