G08B 25/04
Using a single signalling line
Official title: using a single signalling line, e.g. in a closed loop
G08B25/04 (Using a single signalling line) appears on 290 US grants and 338 published applications in this corpus.
Search patents in G08B- Granted patents
- 290
- Published applications
- 338
- Assignees
- 172
- Inventors
- 715
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 3 |
| 2003 | 1 | 4 |
| 2004 | 2 | 0 |
| 2005 | 6 | 3 |
| 2006 | 2 | 10 |
| 2007 | 1 | 8 |
| 2008 | 8 | 8 |
| 2009 | 5 | 3 |
| 2010 | 4 | 5 |
| 2011 | 2 | 3 |
| 2012 | 3 | 5 |
| 2013 | 3 | 7 |
| 2014 | 7 | 2 |
| 2015 | 2 | 6 |
| 2016 | 7 | 10 |
| 2017 | 7 | 10 |
| 2018 | 11 | 24 |
| 2019 | 13 | 35 |
| 2020 | 25 | 32 |
| 2021 | 27 | 30 |
| 2022 | 25 | 24 |
| 2023 | 15 | 30 |
| 2024 | 21 | 27 |
| 2025 | 17 | 34 |
| 2026 | 6 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Detection device for a fire safety system11 Aug 2026US 12,702,882 B2Kidde Fire Protection, LLC
- Surveillance system9 Jun 2026US 12,652,511 B2
- Information processing system, information processing apparatus, information processing method, and non-transitory computer-readable medium28 Apr 2026US 12,614,439 B2Paramount Bed Co., Ltd.
- Optical fiber sensing system, optical fiber sensing equipment, and unmanned aerial vehicle allocation method7 Apr 2026US 12,596,386 B2NEC Corporation
- Information processing device and information processing method27 Jan 2026US 12,537,920 B2Micware Co., Ltd.
- Management apparatus, wireless mobile station configured for communication20 Aug 2026US 2026/0247110 A1JVCKENWOOD Corporation
- Behavior Control System13 Aug 2026US 2026/0233113 A1
- Information processing system, information processing apparatus, information processing method, and non-transitory computer-readable medium6 Aug 2026US 2026/0229105 A1Paramount Bed Co., Ltd.
- Suspicious person detection device, suspicious person detection method, and recording medium30 Jul 2026US 2026/0220944 A1NEC Corporation
- Information processing apparatus, information processing system, information processing method, and non-transitory computer readable medium23 Jul 2026US 2026/0212676 A1NEC Corporation
Most cited
By later US patents
- Micro-programmable security system480US 4,951,029 AInteractive Technologies, Inc. · 1990
- Wireless local area network for use in neighborhoods162US 4,792,946 ASpectrum Electronics, Inc. · 1988
- Device alert system and method107US 7,551,078 B2IHC Intellectual Asset Management, LLC · 2009
- Multiple sensor system for alarm determination with device-to-device communications77US 6,320,501 B1Pittway Corporation · 2001
- Integrated security system having a multiprogrammed controller69US 4,538,138 AAmerican District Telegraph Company · 1985