G08B 27/00
Alarm systems in which the alarm condition is signalled from a central
Official title: Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
G08B27/00 (Alarm systems in which the alarm condition is signalled from a central) appears on 1,646 US grants and 1,923 published applications in this corpus.
Search patents in G08B- Granted patents
- 1,646
- Published applications
- 1,923
- Assignees
- 751
- Inventors
- 3,291
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 1 |
| 2002 | 6 | 8 |
| 2003 | 10 | 21 |
| 2004 | 8 | 33 |
| 2005 | 12 | 42 |
| 2006 | 29 | 46 |
| 2007 | 20 | 55 |
| 2008 | 17 | 44 |
| 2009 | 24 | 72 |
| 2010 | 33 | 56 |
| 2011 | 35 | 44 |
| 2012 | 40 | 47 |
| 2013 | 49 | 51 |
| 2014 | 55 | 89 |
| 2015 | 60 | 99 |
| 2016 | 68 | 69 |
| 2017 | 100 | 96 |
| 2018 | 88 | 118 |
| 2019 | 124 | 157 |
| 2020 | 172 | 167 |
| 2021 | 131 | 155 |
| 2022 | 132 | 115 |
| 2023 | 128 | 105 |
| 2024 | 86 | 98 |
| 2025 | 93 | 88 |
| 2026 | 41 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G08B 27/001Signalling to an emergency team467
- G08B 27/005Alarm systems in which the alarm condition is signalled from a central448
- G08B 27/006Alarm systems in which the alarm condition is signalled from a central428
- G08B 27/008Alarm systems in which the alarm condition is signalled from a central201
- G08B 27/003Signalling to neighbouring houses153
Recent patents
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- Information processing apparatus, communication control apparatus, information processing method, and storage medium3 Sep 2026US 2026/0261834 A1NEC Corporation
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Most cited
By later US patents
- Wireless home fire and security alarm system560US 6,624,750 B1Interlogix, Inc. · 2003
- System and method for monitoring and controlling remote devices510US 6,914,893 B2StatSignal IPC, LLC · 2005
- Disaster warning communications system408US 5,628,050 AScientific and Commercial Systems Corporation · 1997
- Personal emergency, safety warning system and method384US 6,028,514 A2000
- Community-based response system367US 9,232,040 B2ZOLL Medical Corporation · 2016