A61F 7/032
Using oxygen from the air
Official title: {using oxygen from the air, e.g. pocket-stoves}
A61F7/032 (Using oxygen from the air) appears on 287 US grants and 395 published applications in this corpus.
Search patents in A61F- Granted patents
- 287
- Published applications
- 395
- Assignees
- 118
- Inventors
- 615
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 15 | 5 |
| 2002 | 9 | 13 |
| 2003 | 6 | 9 |
| 2004 | 10 | 19 |
| 2005 | 8 | 15 |
| 2006 | 9 | 27 |
| 2007 | 5 | 30 |
| 2008 | 2 | 34 |
| 2009 | 8 | 22 |
| 2010 | 14 | 14 |
| 2011 | 7 | 15 |
| 2012 | 10 | 15 |
| 2013 | 12 | 21 |
| 2014 | 6 | 28 |
| 2015 | 5 | 12 |
| 2016 | 9 | 14 |
| 2017 | 14 | 12 |
| 2018 | 13 | 11 |
| 2019 | 10 | 19 |
| 2020 | 13 | 14 |
| 2021 | 7 | 10 |
| 2022 | 4 | 6 |
| 2023 | 8 | 12 |
| 2024 | 10 | 7 |
| 2025 | 6 | 6 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Ophthalmic shield and therapeutic apparatus14 Oct 2025US 12,440,385 B2Ocular Surface Innovations Inc.
- Heated nasal strip for heating a facial region13 Aug 2026US 2026/0232486 A1
- 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.
- Controlled exothermic heat pack25 Jun 2026US 2026/0174593 A1
- Ophthalmic shield and therapeutic apparatus15 Jan 2026US 2026/0014025 A1Ocular Surface Innovations Inc.
Most cited
By later US patents
- Wound treatment apparatus and method537US 8,529,548 B2Smith & Nephew, Inc. · 2013
- Phase change material thermal capacitor clothing196US 6,855,410 B22005
- Phase change thermal control materials, method and apparatus174US 5,722,482 A1998
- Heat dressing comprising a heat generating unit and an adhesive layer162US 5,662,624 AColoplast A/S · 1997
- Methods and apparatus for improved administration of pharmaceutically active compounds152US 6,245,347 B1Zars, Inc. · 2001