G08B 21/0263
System arrangements wherein the object is to detect the direction in which
Official title: {System arrangements wherein the object is to detect the direction in which child or item is located}
G08B21/0263 (System arrangements wherein the object is to detect the direction in which) appears on 111 US grants and 108 published applications in this corpus.
Search patents in G08B- Granted patents
- 111
- Published applications
- 108
- Assignees
- 59
- Inventors
- 215
- Latest grant
- 11 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 3 |
| 2002 | 5 | 8 |
| 2003 | 4 | 7 |
| 2004 | 2 | 5 |
| 2005 | 0 | 17 |
| 2006 | 12 | 5 |
| 2007 | 2 | 4 |
| 2008 | 4 | 3 |
| 2009 | 2 | 2 |
| 2010 | 1 | 0 |
| 2011 | 2 | 3 |
| 2012 | 1 | 5 |
| 2013 | 3 | 4 |
| 2014 | 1 | 3 |
| 2015 | 4 | 3 |
| 2016 | 4 | 9 |
| 2017 | 5 | 2 |
| 2018 | 6 | 4 |
| 2019 | 6 | 7 |
| 2020 | 3 | 4 |
| 2021 | 8 | 5 |
| 2022 | 3 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Tracking proximities of devices and/or objects11 Feb 2025US 12,225,427 B2Roku, Inc.
- Tracking proximities of devices and/or objects28 May 2024US 11,997,562 B2Roku, Inc.
- Systems, methods, and devices for locating items, people, and/or animals18 Jul 2023US 11,704,989 B1Lynq Technologies, Inc.
- Method and apparatus for improved position and orientation based information display18 Oct 2022US 11,475,177 B2Middle Chart, LLC
- Tracking proximities of devices and/or objects9 Aug 2022US 11,412,346 B2Roku, Inc.
- Safety system11 Dec 2025US 2025/0376114 A1Innotrafik Oy
- Tracking proximities of devices and/or objects18 Jul 2024US 2024/0244394 A1Roku, Inc.
- Tracking Proximities of Devices and/or Objects13 Jun 2024US 2024/0196163 A9Roku, Inc.
- Monitoring system and storage medium5 Oct 2023US 2023/0316889 A1Honda Motor Co., Ltd.
- Tracking Proximities of Devices and/or Objects22 Dec 2022US 2022/0408216 A1Roku, Inc.
Most cited
By later US patents
- Article locating and tracking apparatus and method282US 7,242,306 B2Hill-Rom Services, Inc. · 2007
- Radio tracking system and method of operation thereof259US 5,640,146 ANTP Incorporated · 1997
- Patient tracking system230US 4,814,751 AWildlife Materials, Inc. · 1989
- Child locating and tracking apparatus212US 6,278,370 B12001
- Tracking device205US 7,046,153 B2VitalTrak Technology, Inc. · 2006