G08B 17/04
Hydraulic or pneumatic actuation of the alarm
Official title: Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure
G08B17/04 (Hydraulic or pneumatic actuation of the alarm) appears on 55 US grants and 38 published applications in this corpus.
Search patents in G08B- Granted patents
- 55
- Published applications
- 38
- Assignees
- 28
- Inventors
- 88
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 7 |
| 2015 | 5 | 4 |
| 2016 | 5 | 2 |
| 2017 | 4 | 2 |
| 2018 | 1 | 4 |
| 2019 | 1 | 0 |
| 2020 | 0 | 3 |
| 2021 | 1 | 4 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 5 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve station for a fire alarm system14 Apr 2026US 12,599,795 B2Minimax GmbH & Co. KG
- System and method for detecting and suppressing dust explosions10 Jun 2025US 12,324,940 B2Fike Corporation
- Fabry-perot based advanced pneumatic fire/overheat detector18 Feb 2025US 12,228,459 B2Kidde Technologies, Inc.
- Fire sprinkler waterflow switch with an integrated NAC power source14 Jan 2025US 12,194,329 B2
- Vehicle having a high-voltage store and method for generating an acoustic warning signal7 Jan 2025US 12,187,140 B2Bayerische Motoren Werke Aktiengesellschaft
- Wireless backflow alert system9 Apr 2026US 2026/0098594 A1Watts Regulator Co.
- Fire Sprinkler Waterflow Switch with an Integrated NAC Power Source25 Jan 2024US 2024/0024719 A1
- Fire extinguishing devices with fire predicting function24 Aug 2023US 2023/0264057 A1Ilsun System Co., Ltd
- Alarm valve station for a fire alarm system13 Oct 2022US 2022/0323807 A1Minimax GmbH & Co. KG
- System and method for detecting and suppressing dust explosions29 Sep 2022US 2022/0305316 A1Fike Corporation
Most cited
By later US patents
- Fluid flow detector for a fire alarm system41US 4,051,467 AAmerican District Telegraph Company · 1977
- Water-flow detector25US 4,791,414 APittway Corporation · 1988
- Apparatus for flow detection, measurement and control and method for use of same24US 7,710,282 B12010
- Apparatus for flow detection, measurement and control and method for use of same in a fire sprinkler system23US 6,333,695 B22001
- Apparatus for water flow measurement22US 6,239,708 B12001