A62B 19/00
Cartridges with absorbing substances for respiratory apparatus
Official title: Cartridges with absorbing substances for respiratory apparatus {(carbon dioxide absorbing devices A61M16/22)}
A62B19/00 (Cartridges with absorbing substances for respiratory apparatus) appears on 176 US grants and 171 published applications in this corpus.
Search patents in A62B- Granted patents
- 176
- Published applications
- 171
- Assignees
- 114
- Inventors
- 427
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 3 |
| 2003 | 2 | 1 |
| 2004 | 3 | 4 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 0 | 3 |
| 2008 | 4 | 3 |
| 2009 | 3 | 7 |
| 2010 | 2 | 6 |
| 2011 | 4 | 5 |
| 2012 | 5 | 4 |
| 2013 | 3 | 10 |
| 2014 | 3 | 12 |
| 2015 | 7 | 13 |
| 2016 | 6 | 6 |
| 2017 | 7 | 10 |
| 2018 | 9 | 10 |
| 2019 | 7 | 8 |
| 2020 | 10 | 9 |
| 2021 | 5 | 13 |
| 2022 | 12 | 14 |
| 2023 | 9 | 12 |
| 2024 | 6 | 7 |
| 2025 | 6 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Digital change management system for respirator filter cartridges28 Apr 2026US 12,611,558 B23M Innovative Properties Company
- Gas distributor for rebreather supporting closed and open circuit modes31 Mar 2026US 12,589,846 B2Oxygen Scientific GmbH
- Filter for respirator mask or other filtering applications7 Oct 2025US 12,434,081 B2Airboss Engineered Products Inc.
- Ventilation apparatus and mask12 Aug 2025US 12,383,770 B2Aviation Works Ltd
- Filter cartridge holder with fit-check device12 Aug 2025US 12,383,773 B23M Innovative Properties Company
- Heat exchanger for closed-circuit rebreather6 Aug 2026US 2026/0224922 A1Caeli Technologies Ltd
- Quick release for closed-circuit rebreather30 Jul 2026US 2026/0216540 A1Caeli Technologies Ltd
- Cartridge for capturing co29 Apr 2026US 2026/0097351 A1Safran Aerosystems
- Compositions, methods, and articles comprising cocaine esterase for detoxifying an organophosphate-based agent10 Apr 2025US 2025/0114653 A1Four Winds Biotherapeutics, Inc.
- Improved rescue breather27 Mar 2025US 2025/0099787 A1CSE, Inc.
Most cited
By later US patents
- Portable oxygen concentration system and method of using the same310US 6,651,658 B1SeQual Technologies, Inc. · 2003
- Portable oxygen concentration system and method of using the same223US 6,691,702 B2SeQual Technologies, Inc. · 2004
- Portable oxygen concentration system and method of using the same182US 6,629,525 B2SeQual Technologies, Inc. · 2003
- Respirator air filter cartridge with a replaceable filter element169US 5,222,488 ADonaldson Company, Inc. · 1993
- Self-supporting structures containing immobilized carbon particles and method for forming same131US 4,664,683 APall Corporation · 1987