G08B 13/26
By proximity of an intruder causing variation in capacitance or inductance of
Official title: by proximity of an intruder causing variation in capacitance or inductance of a circuit
G08B13/26 (By proximity of an intruder causing variation in capacitance or inductance of) appears on 157 US grants and 81 published applications in this corpus.
Search patents in G08B- Granted patents
- 157
- Published applications
- 81
- Assignees
- 109
- Inventors
- 270
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 10 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 10 | 1 |
| 2003 | 1 | 1 |
| 2004 | 3 | 4 |
| 2005 | 1 | 5 |
| 2006 | 4 | 5 |
| 2007 | 4 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 1 | 5 |
| 2016 | 6 | 2 |
| 2017 | 1 | 1 |
| 2018 | 3 | 9 |
| 2019 | 5 | 9 |
| 2020 | 4 | 9 |
| 2021 | 13 | 4 |
| 2022 | 5 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pest control system having event monitoring28 Jul 2026US 12,694,779 B2Smart Wave Technologies, Inc.
- Method for detecting a change in the environment of a cable19 May 2026US 12,631,295 B2Cetim
- Status alert system, method and apparatus for security systems28 Apr 2026US 12,614,448 B2Universal Electronics Inc.
- Pest control system having event monitoring8 Oct 2024US 12,112,612 B2Smart Wave Technologies, Inc.
- Method and system of detecting dynamic status of a space5 Sep 2023US 11,749,099 B2Wistron Neweb Corp.
- Status alert system, method and apparatus for security systems10 Sep 2026US 2026/0268759 A1Universal Electronics Inc.
- Status alert system, method and apparatus for security systems4 Dec 2025US 2025/0371971 A1Universal Electronics Inc.
- Pest Control System Having Event Monitoring19 Dec 2024US 2024/0420560 A1Smart Wave Technologies, Inc.
- Method for detecting a change in the environment of a cable26 Oct 2023US 2023/0339125 A1Cetim
- Pest Control System Having Event Monitoring9 Feb 2023US 2023/0041695 A1Smart Wave Technologies, Inc.
Most cited
By later US patents
- Proximity responsive capacitance sensitive method, system, and associated electrical circuitry for use in controlling mechanical and electro-mechanical equipment205US 5,081,406 ASaf-T-Margin, Inc. · 1992
- System for detecting human presence in hazardous situations109US 5,436,613 AInstitut de Recherche en Sante et en Securite du Travail · 1995
- Capacitively coupled machine tool safety system having a digital quantizer91US 4,470,046 AE. I. Du Pont de Nemours and Company · 1984
- Occupant sensor84US 6,392,542 B1Automotive Systems Laboratory, Inc. · 2002
- Double-driven shield capacitive type proximity sensor82US 5,442,347 AThe United States of America as represented by the Administrater, national Aeronautics & Space Administration · 1995