G08B 26/005
Alarm systems in which substations are interrogated in succession by a central
Official title: {with substations connected in series, e.g. cascade}
G08B26/005 (Alarm systems in which substations are interrogated in succession by a central) appears on 41 US grants and 17 published applications in this corpus.
Search patents in G08B- Granted patents
- 41
- Published applications
- 17
- Assignees
- 31
- Inventors
- 89
- Latest grant
- 7 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 2 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Automatic addressing for fire loop7 May 2024US 11,978,333 B2Carrier Corporation
- Zoned roof monitoring system27 Jun 2023US 11,686,644 B2Detec Systems LLC
- Serial bus auto-addressing23 Jul 2019US 10,361,996 B2Elmos Semiconductor AG
- Isolator circuit4 Sep 2018US 10,069,293 B2Tyco Fire & Security GmbH
- Isolator circuit6 Jun 2017US 9,673,615 B2Tyco Fire & Security GmbH
- Hybrid remote device for interfacing with a fire alarm panel loop18 Sep 2025US 2025/0292671 A1Tyco Fire & Security GmbH
- Automatic addressing for fire loop6 Apr 2023US 2023/0108030 A1Carrier Corporation
- Zoned roof monitoring system2 Mar 2023US 2023/0066225 A1Detec Systems LLC
- Communication unit and safety system9 Jan 2020US 2020/0013276 A1OMRON Corporation
- Serial bus auto-addressing30 May 2019US 2019/0166089 A1Elmos Semiconductor AG
Most cited
By later US patents
- 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
- Information transmission system41US 4,864,519 AGent Limited · 1989
- Fire alarm system comprising a plurality of alarms which may be operated by way of an alarm loop24US 4,162,489 ASiemens Aktiengesellschaft · 1979
- Method of transmitting measuring values in a monitoring system21US 4,612,534 ACerberus AG · 1986