G08B 25/014
Alarm signalling to a central station with two-way communication
Official title: {Alarm signalling to a central station with two-way communication, e.g. with signalling back}
G08B25/014 (Alarm signalling to a central station with two-way communication) appears on 279 US grants and 257 published applications in this corpus.
Search patents in G08B- Granted patents
- 279
- Published applications
- 257
- Assignees
- 146
- Inventors
- 479
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 4 |
| 2005 | 1 | 3 |
| 2006 | 1 | 1 |
| 2007 | 3 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 3 | 2 |
| 2012 | 0 | 5 |
| 2013 | 4 | 5 |
| 2014 | 8 | 11 |
| 2015 | 8 | 10 |
| 2016 | 8 | 11 |
| 2017 | 9 | 19 |
| 2018 | 16 | 21 |
| 2019 | 30 | 17 |
| 2020 | 25 | 17 |
| 2021 | 28 | 33 |
| 2022 | 29 | 20 |
| 2023 | 24 | 27 |
| 2024 | 19 | 19 |
| 2025 | 16 | 11 |
| 2026 | 3 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Far edge/IOT intelligence design and apparatus for human operators assistance31 Mar 2026US 12,591,791 B2Dell Products L. P.
- Event-detection confirmation by voice user interface17 Mar 2026US 12,579,878 B1Amazon Technologies, Inc.
- Building alarm system for active shooter emergencies21 Oct 2025US 12,452,393 B1
- Smart fixture system with integrated sensors for emergency detection and response, and methods for operation14 Oct 2025US 12,444,291 B1
- Personal alarm device13 Aug 2026US 2026/0237287 A1Crystal Alarm AB
- Method for alerting a remote communication terminal and associated alert communication device2 Jul 2026US 2026/0188102 A1
- Method and apparatus for transmitting notification in vessel using metal body communication25 Jun 2026US 2026/0181590 A1ZN Technologies Co., Ltd.
- User authentication in a premises security system11 Jun 2026US 2026/0161766 A1The ADT Security Corporation
- Method and information system for delivering warning information in an information system28 May 2026US 2026/0148634 A1Audi AG
Most cited
By later US patents
- Inventory, cash, security, and maintenance control apparatus and method for a plurality of remote vending machines519US 5,091,713 AUniversal Automated Systems, Inc. · 1992
- Bed status information system for hospital beds473US 5,699,038 AHill-Rom, Inc. · 1997
- Patient/nurse call system431US 5,838,223 AHill-Rom, Inc. · 1998
- Patient/nurse call system339US 5,561,412 AHill-Rom, Inc. · 1996
- Communication system with environmental condition detection capability335US 5,159,315 AMotorola, Inc. · 1992