A62B 9/027
Pilot operated, i.e. controlled by valve means sensitive to a reduced downstream
Official title: {pilot operated, i.e. controlled by valve means sensitive to a reduced downstream pressure}
A62B9/027 (Pilot operated, i.e. controlled by valve means sensitive to a reduced downstream) appears on 43 US grants and 22 published applications in this corpus.
Search patents in A62B- Granted patents
- 43
- Published applications
- 22
- Assignees
- 28
- Inventors
- 51
- Latest grant
- 30 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Bypass knob for breathing apparatus pressure regulator30 Nov 2021US 11,185,723 B2MSA Technology, LLC
- Serviceable cartridge assembly for respirator exhalation unit22 Jun 2021US 11,040,226 B2D. Wheatley Enterprises, Inc.
- Oxygen system for parachuting15 Dec 2020US 10,864,388 B2C2M Design OCD Limited
- Serviceable cartridge assembly for respirator exhalation unit7 May 2019US 10,279,204 B2D. Wheatley Enterprises, Inc.
- Lung demand regulator27 Jun 2024US 2024/0207658 A1Dräger Safety AG & Co. KGaA
- Centralized control of distributed oxygen system21 Dec 2023US 2023/0405366 A1B/E Aerospace, Inc.
- Phase dilution demand oxygen regulator (pddor) system for personal breathing10 Mar 2022US 2022/0072341 A1B/E Aerospace Systems GmbH
- Pressure regulating device29 Jul 2021US 2021/0229787 A1
- Oxygen system for parachuting1 Apr 2021US 2021/0093901 A1C2M Design OCD Limited
Most cited
By later US patents
- Devices for controlling gas flows92US 4,336,590 AIntertechnique · 1982
- Oxygen breathing controller having a G-sensor72US 5,701,889 AConax Florida Corporation · 1997
- Breathing mask32US 8,336,547 B1Amron International, Inc. · 2012
- Emergency life support system29US 4,250,876 ARobertshaw Controls Company · 1981
- Pressure regulator28US 4,821,767 A1989