G08B 25/045
With sensing devices and central station in a closed loop
Official title: {with sensing devices and central station in a closed loop, e.g. McCullough loop}
G08B25/045 (With sensing devices and central station in a closed loop) appears on 44 US grants and 35 published applications in this corpus.
Search patents in G08B- Granted patents
- 44
- Published applications
- 35
- Assignees
- 36
- Inventors
- 92
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 1 | 4 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 7 | 3 |
| 2022 | 2 | 3 |
| 2023 | 1 | 2 |
| 2024 | 3 | 3 |
| 2025 | 3 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Catalytic converter theft prevention and recovery28 Jan 2025US 12,211,367 B2CATrak Technologies, Inc.
- Fire panel end of line supervision monitoring26 Nov 2024US 12,151,131 B1Tyco Fire & Security GmbH
- Temporally Distributed Transmission of Incident Data Records Logged by a Fire Alarm and Including Measurement Values Relating to Significant Fire Characteristic Variables to a Central Fire Alarm System2 Jul 2026US 2026/0188099 A1Siemens Schweiz AG
- Fire detection system with tampering detection capability and a method thereof15 Jan 2026US 2026/0018047 A1Kidde Fire Protection, LLC
- Command transmission based on an electrical measurement in an event system27 Feb 2025US 2025/0068465 A1Honeywell International Inc.
- Fire panel end of line supervision monitoring21 Nov 2024US 2024/0382792 A1Tyco Fire & Security GmbH
- Detection device for a fire safety system3 Oct 2024US 2024/0325809 A1Carrier Corporation
Most cited
By later US patents
- Wireless local area network for use in neighborhoods162US 4,792,946 ASpectrum Electronics, Inc. · 1988
- Emergency supervisory system30US 4,752,698 AHochiki Corporation · 1988
- Method and device for automatically allocating detector addresses in an alarm system19US 6,838,999 B1Job Lizenz GmbH & Co. KG · 2005
- Multiplexing system line fault isolation and identification17US 4,209,666 A1980
- Ring network system capable of detecting an alarm in each node12US 5,621,383 ANEC Corporation · 1997