A61F 2007/038
Carbon or charcoal
Official title: {Carbon or charcoal, e.g. active}
A61F2007/038 (Carbon or charcoal) appears on 33 US grants and 48 published applications in this corpus.
Search patents in A61F- Granted patents
- 33
- Published applications
- 48
- Assignees
- 25
- Inventors
- 105
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 1 | 0 |
| 2004 | 1 | 5 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 4 |
| 2018 | 1 | 2 |
| 2019 | 2 | 6 |
| 2020 | 1 | 4 |
| 2021 | 3 | 2 |
| 2022 | 1 | 4 |
| 2023 | 2 | 5 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing heating body, and heating body22 Sep 2026US 12,740,890 B2Ferric Inc.
- 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.
- Heating tool and method for manufacturing heating tool2 Dec 2025US 12,484,685 B2Kao Corporation
- Heating body and method for producing the same24 Sep 2024US 12,097,144 B2Ferric Inc.
- Uterine heat patch23 Jul 2026US 2026/0207375 A1Fridababy, LLC
- Expandable exothermic gel compositions and methods of use23 Jul 2026US 2026/0209591 A1Forever Young International, Inc.
- Flameless method of heating food or food containers31 Jul 2025US 2025/0241481 A1Forever Young International, Inc.
- Heat patch capable of targeted drug delivery based on monroe effect26 Jun 2025US 2025/0205172 A1Longxi Cheezheng Medicinal Materials Co., Ltd.
- Disposable heating element assembly7 Nov 2024US 2024/0369308 A1Schawbel Technologies LLC
Most cited
By later US patents
- Disposable thermal body wrap134US 6,336,935 B12002
- Disposable body warmer91US 5,046,479 AMycoal Warmers Company Limited · 1991
- Structure of warmer81US 3,976,049 AAsahi Kasei Kogyo Kabushiki Kaisha · 1976
- Self warming mask77US 7,707,655 B2Kimberly-Clark Worldwide, Inc. · 2010
- Exothermic bandage76US 6,465,709 B1Johnson & Johnson Consumer Companies, Inc. · 2002