B60R 21/272
With means for increasing the pressure of the gas just before or
Official title: with means for increasing the pressure of the gas just before or during liberation, e.g. hybrid inflators
B60R21/272 (With means for increasing the pressure of the gas just before or) appears on 444 US grants and 222 published applications in this corpus.
Search patents in B60R- Granted patents
- 444
- Published applications
- 222
- Assignees
- 99
- Inventors
- 613
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 8 | 0 |
| 1992 | 2 | 0 |
| 1993 | 13 | 0 |
| 1994 | 10 | 0 |
| 1995 | 17 | 0 |
| 1996 | 39 | 0 |
| 1997 | 38 | 0 |
| 1998 | 25 | 0 |
| 1999 | 24 | 0 |
| 2000 | 24 | 0 |
| 2001 | 32 | 2 |
| 2002 | 16 | 13 |
| 2003 | 13 | 24 |
| 2004 | 14 | 18 |
| 2005 | 13 | 23 |
| 2006 | 13 | 16 |
| 2007 | 10 | 8 |
| 2008 | 16 | 14 |
| 2009 | 6 | 5 |
| 2010 | 9 | 4 |
| 2011 | 4 | 3 |
| 2012 | 1 | 4 |
| 2013 | 6 | 0 |
| 2014 | 5 | 8 |
| 2015 | 3 | 5 |
| 2016 | 5 | 8 |
| 2017 | 11 | 17 |
| 2018 | 7 | 8 |
| 2019 | 10 | 16 |
| 2020 | 9 | 5 |
| 2021 | 7 | 4 |
| 2022 | 5 | 5 |
| 2023 | 3 | 5 |
| 2024 | 6 | 0 |
| 2025 | 2 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas generator comprising reagent gases21 Apr 2026US 12,606,120 B2Autoliv Development AB
- Ignition system and method for manufacturing the same, gas generator and safety airbag21 Apr 2026US 12,606,121 B2Yanfeng International Automotive Technology Co., Ltd.
- Gas generator7 Apr 2026US 12,594,901 B2Zf Airbag Germany GmbH
- Hybrid inflator6 Jan 2026US 12,515,612 B2Toyoda Gosei Co., Ltd.
- Gas generator with a pressurized gas reserve3 Jun 2025US 12,319,225 B2Autoliv Development AB
- Gas generator27 Aug 2026US 2026/0249802 A1Zf Airbag Germany GmbH
- Pyrotechnic charge chamber, hybrid gas generator and safety airbag27 Aug 2026US 2026/0249806 A1Yanfeng International Automotive Technology Co., Ltd.
- Hybrid airbag inflator2 Jul 2026US 2026/0184282 A1Joyson Safety Systems Acquisition LLC
- Hybrid inflator26 Feb 2026US 2026/0054683 A1Toyoda Gosei Co., Ltd.
- Ignition system and method for manufacturing the same, gas generator and safety airbag11 Sep 2025US 2025/0282320 A1Yanfeng International Automotive Technology Co., Ltd.
Most cited
By later US patents
- Single pyrotechnic hybrid inflator91US 5,031,932 A1991
- Dual pyrotechnic hybrid inflator88US 5,022,674 ABendix-Atlantic Inflator Company · 1991
- Air bag tether release assembly88US 6,454,300 B1Delphi Technologies, Inc. · 2002
- Inflator assembly83US 5,131,680 ATRW Vehicle Safety Systems Inc. · 1992
- Air bag inflator83US 6,019,389 ATRW Vehicle Safety Systems Inc. · 2000