G08B 21/0247
System arrangements wherein the alarm criteria uses signal strength
Official title: {System arrangements wherein the alarm criteria uses signal strength}
G08B21/0247 (System arrangements wherein the alarm criteria uses signal strength) appears on 305 US grants and 269 published applications in this corpus.
Search patents in G08B- Granted patents
- 305
- Published applications
- 269
- Assignees
- 158
- Inventors
- 520
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 9 |
| 2002 | 12 | 11 |
| 2003 | 10 | 11 |
| 2004 | 7 | 9 |
| 2005 | 8 | 7 |
| 2006 | 7 | 9 |
| 2007 | 1 | 4 |
| 2008 | 6 | 4 |
| 2009 | 1 | 4 |
| 2010 | 4 | 8 |
| 2011 | 5 | 6 |
| 2012 | 9 | 13 |
| 2013 | 6 | 5 |
| 2014 | 7 | 16 |
| 2015 | 11 | 11 |
| 2016 | 11 | 18 |
| 2017 | 17 | 19 |
| 2018 | 22 | 21 |
| 2019 | 14 | 12 |
| 2020 | 14 | 17 |
| 2021 | 17 | 24 |
| 2022 | 13 | 12 |
| 2023 | 13 | 8 |
| 2024 | 11 | 5 |
| 2025 | 10 | 5 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Devices and methods for locating accessories of an electronic device2 Dec 2025US 12,488,664 B2Apple Inc.
- Monitoring system16 Sep 2025US 12,417,685 B2Connect-In Ltd.
- Method for estimating a quantity of a blood component in a fluid receiver and corresponding error3 Jun 2025US 12,322,275 B2Stryker Corporation
- Mobile communication device and non-transitory computer readable storage medium for home automation18 Feb 2025US 12,231,991 B2THL Holding Company, LLC
- Enhanced monitoring and incident detection in a network18 Feb 2025US 12,232,159 B2Telefonaktiebolaget LM Ericsson (publ)
- Monitoring system2 Apr 2026US 2026/0094511 A1Connect-In Ltd.
- Devices and methods for locating accessories of an electronic device23 Oct 2025US 2025/0329235 A1Apple Inc.
- Devices and methods for locating accessories of an electronic device23 Oct 2025US 2025/0329236 A1Apple Inc.
- Mobile communication device for home automation and non-transitory computer readable storage medium for use therewith8 May 2025US 2025/0150786 A1THL Holding Company, LLC
- Tamper resistant one-time use wristband and clasp and algorithm to enhance the practical use of radio frequency for proximity between two or more entities1 May 2025US 2025/0140096 A1Invisalert Solutions, Inc.
Most cited
By later US patents
- Self-locating remote monitoring systems473US 5,650,770 A1997
- Multi-hazard alarm system using selectable power-level transmission and localization380US 5,461,365 A1995
- Self-locating remote monitoring systems296US 6,198,390 B12001
- Out-of-range personnel monitor and alarm264US 4,593,273 A1986
- Pet locator262US 6,172,640 B22001