B64D 2231/025
Oxygen masks
Official title: Oxygen masks; Mask storages; Features related to mask deployment
B64D2231/025 (Oxygen masks) appears on 169 US grants and 183 published applications in this corpus.
Search patents in B64D- Granted patents
- 169
- Published applications
- 183
- Assignees
- 62
- Inventors
- 336
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 3 |
| 2003 | 2 | 5 |
| 2004 | 2 | 2 |
| 2005 | 1 | 5 |
| 2006 | 0 | 3 |
| 2007 | 2 | 4 |
| 2008 | 3 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 6 |
| 2011 | 0 | 4 |
| 2012 | 2 | 6 |
| 2013 | 6 | 10 |
| 2014 | 3 | 17 |
| 2015 | 5 | 10 |
| 2016 | 10 | 8 |
| 2017 | 8 | 17 |
| 2018 | 7 | 8 |
| 2019 | 13 | 15 |
| 2020 | 11 | 14 |
| 2021 | 4 | 8 |
| 2022 | 14 | 11 |
| 2023 | 10 | 10 |
| 2024 | 6 | 5 |
| 2025 | 9 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft overhead passenger service unit8 Sep 2026US 12,728,993 B2Goodrich Lighting Systems GmbH
- Oxygen mask for use in an aircraft, emergency oxygen system, and aircraft25 Aug 2026US 12,714,889 B2B/E Aerospace Systems GmbH
- Indicators for use in oxygen systems27 Jan 2026US 12,533,536 B2B/E Aerospace, Inc.
- Monitoring system25 Nov 2025US 12,478,808 B2Dräger Safety AG & Co. KGaA
- Quick-donning and preventive wearing respiratory mask system for aircraft crew member25 Nov 2025US 12,478,809 B2Safran Aerotechnics
- Aircraft oxygen supply system, and aircraft comprising such an aircraft oxygen supply system1 Jan 2026US 2026/0001659 A1B/E Aerospace Systems GmbH
- Oxygen Pressure Relief and Ventilation System and Method30 Oct 2025US 2025/0333177 A1Textron Aviation Inc.
- Oxygen Pressure Relief and Ventilation System and Method30 Oct 2025US 2025/0333178 A1Textron Aviation Inc.
- Emergency oxygen systems for internal cabins of aircraft2 Oct 2025US 2025/0304254 A1The Boeing Company
- Collapsible passenger protective breathing equipment7 Aug 2025US 2025/0249294 A1B/E Aerospace, Inc.
Most cited
By later US patents
- Quick-donning full face oxygen mask with inflatable harness and soft foldable lens113US 5,664,566 APuritan-Bennett Corporation · 1997
- Compatible smoke and oxygen masks for use on aircraft79US 4,559,939 ALockheed Corporation · 1985
- Passenger emergency oxygen mask drop zone extender50US 4,154,237 ABoeing Commercial Airplane Company · 1979
- Personal air cooling device50US 5,353,605 ACoolight Research & Development Ltd. · 1994
- Operator station emergency visual assurance method and apparatus47US 4,832,287 A1989