A62B 21/00
Devices for producing oxygen from chemical substances for respiratory apparatus
A62B21/00 (Devices for producing oxygen from chemical substances for respiratory apparatus) appears on 141 US grants and 132 published applications in this corpus.
Search patents in A62B- Granted patents
- 141
- Published applications
- 132
- Assignees
- 74
- Inventors
- 273
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 4 |
| 2006 | 0 | 11 |
| 2007 | 2 | 18 |
| 2008 | 6 | 2 |
| 2009 | 3 | 5 |
| 2010 | 6 | 5 |
| 2011 | 2 | 3 |
| 2012 | 4 | 1 |
| 2013 | 2 | 6 |
| 2014 | 3 | 18 |
| 2015 | 9 | 5 |
| 2016 | 3 | 1 |
| 2017 | 7 | 3 |
| 2018 | 5 | 12 |
| 2019 | 1 | 4 |
| 2020 | 6 | 6 |
| 2021 | 4 | 4 |
| 2022 | 4 | 6 |
| 2023 | 5 | 6 |
| 2024 | 5 | 3 |
| 2025 | 3 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oxygen generator for use in an aircraft, passenger oxygen mask system, and aircraft26 Aug 2025US 12,397,182 B2B/E Aerospace Systems GmbH
- Apparatus and method for generating oxygen from sodium percarbonate and water, including seawater25 Mar 2025US 12,258,267 B2The United States of America as represented by the Secretary of the Navy
- Modular portable multi-crew life support system4 Feb 2025US 12,214,227 B2Hamilton Sundstrand Corporation
- Systems and devices for generating nitric oxide24 Dec 2024US 12,171,948 B2VERO Biotech Inc.
- System for monitoring serviceability status parameters3 Dec 2024US 12,157,020 B2Dezega Polska Sp. Z O. O.
- Protective hood7 May 2026US 2026/0124476 A1Safran Aerosystems
- Systems and devices for generating nitric oxide2 Oct 2025US 2025/0303101 A1VERO Biotech Inc.
- Environment control system utilizing an electrochemical cell20 Feb 2025US 2025/0058072 A1USA Fortescue IP, Inc.
- Portable system for the production of oxygen30 Jan 2025US 2025/0032826 A1Oxygenium Ltd.
- Quantum production and supply of one or more breathing or other substances to an organism26 Dec 2024US 2024/0424324 A1
Most cited
By later US patents
- Oxygen generating module67US 4,963,327 AZ-Gard, Inc. · 1990
- Nitrous oxide based oxygen supply system67US 6,347,627 B1Pioneer Inventions, Inc. · 2002
- Survival mask51US 6,543,450 B12003
- Systems and devices for generating nitric oxide44US 8,607,785 B2Geno LLC · 2013
- Oxygen concentration system36US 8,147,597 B2RIC Investments, LLC · 2012