G08B 21/16
Combustible gas alarms
G08B21/16 (Combustible gas alarms) appears on 233 US grants and 281 published applications in this corpus.
Search patents in G08B- Granted patents
- 233
- Published applications
- 281
- Assignees
- 163
- Inventors
- 567
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 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 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 5 |
| 2003 | 3 | 4 |
| 2004 | 6 | 10 |
| 2005 | 2 | 4 |
| 2006 | 7 | 5 |
| 2007 | 7 | 8 |
| 2008 | 5 | 6 |
| 2009 | 2 | 6 |
| 2010 | 4 | 7 |
| 2011 | 2 | 8 |
| 2012 | 1 | 3 |
| 2013 | 4 | 2 |
| 2014 | 5 | 3 |
| 2015 | 3 | 8 |
| 2016 | 2 | 2 |
| 2017 | 6 | 14 |
| 2018 | 4 | 7 |
| 2019 | 10 | 17 |
| 2020 | 21 | 32 |
| 2021 | 11 | 20 |
| 2022 | 22 | 25 |
| 2023 | 20 | 30 |
| 2024 | 25 | 24 |
| 2025 | 21 | 18 |
| 2026 | 16 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and internet of things large model systems for emergency supervision of smart city catering stores25 Aug 2026US 12,717,322 B2Chengdu Qinchuan Iot Technology Co., Ltd.
- Modular wearable safety device25 Aug 2026US 12,718,678 B1Saudi Electricity Company
- Combustion and explosion-proofing safety management system for vehicle-mounted flammable and explosive articles23 Jun 2026US 12,662,069 B2The Third Research Institute of Ministry of Public Security
- Gas detector12 May 2026US 12,625,121 B2Sndway Technology (Guangdong) Co., Ltd.
- Assembly point system with active air quality and industrial gas emissions monitoring14 Apr 2026US 12,601,653 B2Saudi Arabian Oil Company
- Testing of detection and warning functions of interconnected smoke, heat and carbon monoxide alarms by single person25 Jun 2026US 2026/0179477 A1
- Backdraft determination apparatus and determining a likelihood of a backdraft in an enclosure11 Jun 2026US 2026/0162510 A1
- System and method of worker exposure tracking14 May 2026US 2026/0133170 A1Industrial Scientific Corporation
- System and method of extending and bridging a network with high capability devices26 Mar 2026US 2026/0089061 A1Industrial Scientific Corporation
- System and method of plume modeling19 Mar 2026US 2026/0079143 A1Industrial Scientific Corporation
Most cited
By later US patents
- Respiratory humidification system235US 6,272,933 B1Fisher & Paykel Limited · 2001
- Safety indicator and method213US 7,378,954 B22008
- Respiratory humidification system208US 6,349,722 B1Fisher & Paykel Limited · 2002
- Communications network for emergency services personnel194US 7,263,379 B1STI Licensing Corp. · 2007
- Integrated physiologic sensor system184US 6,199,550 B1BioAsyst, L.L.C. · 2001