G08B 29/123
Of line circuits
Official title: {of line circuits}
G08B29/123 (Of line circuits) appears on 69 US grants and 55 published applications in this corpus.
Search patents in G08B- Granted patents
- 69
- Published applications
- 55
- Assignees
- 48
- Inventors
- 150
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 2 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 3 | 0 |
| 2013 | 3 | 3 |
| 2014 | 2 | 1 |
| 2015 | 0 | 3 |
| 2016 | 3 | 2 |
| 2017 | 4 | 2 |
| 2018 | 6 | 3 |
| 2019 | 1 | 2 |
| 2020 | 5 | 3 |
| 2021 | 4 | 7 |
| 2022 | 5 | 5 |
| 2023 | 4 | 0 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Broken wire detection within a security surveillance network18 Aug 2026US 12,711,854 B2Robert Bosch GmbH
- Security system with improved communications reliability28 Apr 2026US 12,614,447 B2Honeywell International Inc.
- Testing of detection and warning functions of interconnected smoke, heat and carbon monoxide alarms by single person14 Apr 2026US 12,602,988 B2
- Adaptable supervision rate for wireless intrusion detectors25 Mar 2025US 12,260,739 B2Honeywell International Inc.
- Extracting the resistor-capacitor time constant of an electronic circuit line18 Feb 2025US 12,230,123 B2Micron Technology, Inc.
- Fire detection system data device24 Sep 2026US 2026/0290149 A1Tyco Fire & Security GmbH
- Broken wire detection within a security surveilllance network2 Jul 2026US 2026/0188105 A1Robert Bosch GmbH
- Alternate operational paths during fire system failures25 Jun 2026US 2026/0179472 A1Honeywell International Inc.
- Testing of detection and warning functions of interconnected smoke, heat and carbon monoxide alarms by single person25 Jun 2026US 2026/0179477 A1
- Manual initiating device isolation and testing11 Jun 2026US 2026/0162517 A1Honeywell International Inc.
Most cited
By later US patents
- Active security system212US 7,053,765 B1Provider Services, Inc. · 2006
- Method and system for analyzing received signal strength99US 6,150,936 APittway Corporation · 2000
- Method and apparatus for authenticated on-site testing, inspection, servicing and control of life-safety equipment and reporting of same using a remote accessory86US 7,649,450 B22010
- Alarm communications system with supervision signal RSSI analysis38US 5,801,626 APittway Corporation · 1998
- Fibre optic security system37US 4,292,628 AChubb Industries Limited · 1981