A62B 27/00
Methods or devices for testing respiratory or breathing apparatus for high altitudes
Official title: Methods or devices for testing respiratory or breathing apparatus {for high altitudes}(apparatus for testing gastightness in general G01M)
A62B27/00 (Methods or devices for testing respiratory or breathing apparatus for high altitudes) appears on 151 US grants and 179 published applications in this corpus.
Search patents in A62B- Granted patents
- 151
- Published applications
- 179
- Assignees
- 98
- Inventors
- 411
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 4 | 2 |
| 2006 | 3 | 4 |
| 2007 | 1 | 4 |
| 2008 | 3 | 1 |
| 2009 | 5 | 3 |
| 2010 | 1 | 2 |
| 2011 | 3 | 5 |
| 2012 | 5 | 5 |
| 2013 | 4 | 6 |
| 2014 | 4 | 7 |
| 2015 | 4 | 3 |
| 2016 | 2 | 4 |
| 2017 | 5 | 7 |
| 2018 | 3 | 8 |
| 2019 | 4 | 10 |
| 2020 | 10 | 15 |
| 2021 | 6 | 16 |
| 2022 | 12 | 14 |
| 2023 | 6 | 17 |
| 2024 | 13 | 14 |
| 2025 | 8 | 10 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Negative pressure reusable respirator system for safety event detection11 Aug 2026US 12,702,874 B23M Innovative Properties Company
- Systems and methods for automated respirator4 Aug 2026US 12,697,513 B23M Innovative Properties Company
- Method to calculate fit factor and protection factor with a dynamically changing background challenge28 Jul 2026US 12,691,305 B1The United States of America as represented by the Secretary of the Army
- Respiratory protection device positive pressure seal check methods and devices2 Jun 2026US 12,642,997 B23M Innovative Properties Company
- Custom-fit reusable respiratory protective device19 May 2026US 12,628,889 B2Georgia Tech Research Corporation
- Systems and methods for checking personal protection device functionality27 Aug 2026US 2026/0249111 A13M Innovative Properties Company
- Adapter for respirator fit testing27 Aug 2026US 2026/0249112 A1Ohd, Lllp
- Respirator fit testing particle generation management27 Aug 2026US 2026/0251548 A1Ohd, Lllp
- Negative pressure reusable respirator system for safety event detection13 Aug 2026US 2026/0233034 A13M Innovative Properties Company
- Systems and methods for automated respirator13 Aug 2026US 2026/0233035 A13M Innovative Properties Company
Most cited
By later US patents
- Determination of mask fitting pressure and correct mask fit146US 6,425,395 B1ResMed Limited · 2002
- Respirator having thermochromic fit-indicating seal138US 5,617,849 AMinnesota Mining and Manufacturing Company · 1997
- Respirator cartridge with sealing fit test structure and method of use138US 5,647,356 ADonaldson Company, Inc. · 1997
- Leak test adaptor apparatus for facilitating leak testing face mask respirators108US 4,914,957 AWestinghouse Electric Corp. · 1990
- Positive pressure test apparatus for facepiece respirator95US 5,299,448 ACabot Safety Corporation · 1994