G08B 17/11
Using an ionisation chamber for detecting smoke or gas
Official title: using an ionisation chamber for detecting smoke or gas
G08B17/11 (Using an ionisation chamber for detecting smoke or gas) appears on 1,072 US grants and 691 published applications in this corpus.
Search patents in G08B- Granted patents
- 1,072
- Published applications
- 691
- Assignees
- 369
- Inventors
- 1,492
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 29 | 0 |
| 1977 | 30 | 0 |
| 1978 | 27 | 0 |
| 1979 | 22 | 0 |
| 1980 | 35 | 0 |
| 1981 | 28 | 0 |
| 1982 | 18 | 0 |
| 1983 | 13 | 0 |
| 1984 | 12 | 0 |
| 1985 | 13 | 0 |
| 1986 | 16 | 0 |
| 1987 | 21 | 0 |
| 1988 | 17 | 0 |
| 1989 | 22 | 0 |
| 1990 | 15 | 0 |
| 1991 | 9 | 0 |
| 1992 | 11 | 0 |
| 1993 | 9 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 17 | 0 |
| 1997 | 15 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 15 | 0 |
| 2001 | 17 | 3 |
| 2002 | 16 | 12 |
| 2003 | 11 | 9 |
| 2004 | 13 | 22 |
| 2005 | 12 | 25 |
| 2006 | 18 | 19 |
| 2007 | 19 | 27 |
| 2008 | 12 | 32 |
| 2009 | 16 | 30 |
| 2010 | 27 | 29 |
| 2011 | 18 | 36 |
| 2012 | 19 | 17 |
| 2013 | 21 | 36 |
| 2014 | 37 | 34 |
| 2015 | 59 | 71 |
| 2016 | 41 | 48 |
| 2017 | 47 | 26 |
| 2018 | 32 | 13 |
| 2019 | 17 | 32 |
| 2020 | 26 | 21 |
| 2021 | 30 | 36 |
| 2022 | 21 | 26 |
| 2023 | 26 | 25 |
| 2024 | 24 | 28 |
| 2025 | 23 | 23 |
| 2026 | 15 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flow rate detection for an aspirating smoke detection system29 Sep 2026US 12,747,971 B2Honeywell International Inc.
- Spring bracket and sensor device including same8 Sep 2026US 12,733,102 B2Johnson Controls Fire Protection LP
- Detection device for a fire safety system11 Aug 2026US 12,702,882 B2Kidde Fire Protection, LLC
- Aspirating smoke detector discreet sample point11 Aug 2026US 12,705,968 B2Honeywell International Inc.
- Optical chamber base with integrated reflective surfaces for particle detection14 Jul 2026US 12,682,738 B2Honeywell International Inc.
- Hazard detector contained within a fixture serving an unrelated purpose13 Aug 2026US 2026/0237279 A1Microchip Technology Incorporated
- Fireproof lighting structure with message sending capability16 Jul 2026US 2026/0202050 A1Ledvance GmbH
- Battery omission prevention structure for smoke detector9 Jul 2026US 2026/0196119 A1Jiangsu Barep Smart Technology Co., Ltd
- Drift reset circuit for updating the input offset voltage in an ionization smoke detector11 Jun 2026US 2026/0163526 A1Microchip Technology Incorporated
- Mounting plate with integrated power supply21 May 2026US 2026/0141793 A1Resideo LLC
Most cited
By later US patents
- System and method for accessing residential monitoring devices586US 6,914,533 B2StatSignal IPC, LLC · 2005
- Intelligent building alarm296US 6,873,256 B22005
- Smoke detection methods, devices, and systems255US 7,295,128 B2Sipco, LLC · 2007
- Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy231US 5,546,074 ASentrol, Inc. · 1996
- Battery-powered, RF-interconnected detector sensor system187US 6,078,269 ASafenight Technology Inc. · 2000