G08B 13/2477
Antenna or antenna activator circuit
Official title: {Antenna or antenna activator circuit}
G08B13/2477 (Antenna or antenna activator circuit) appears on 163 US grants and 100 published applications in this corpus.
Search patents in G08B- Granted patents
- 163
- Published applications
- 100
- Assignees
- 56
- Inventors
- 157
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 4 |
| 2002 | 7 | 8 |
| 2003 | 1 | 5 |
| 2004 | 4 | 6 |
| 2005 | 4 | 11 |
| 2006 | 7 | 6 |
| 2007 | 4 | 2 |
| 2008 | 3 | 9 |
| 2009 | 3 | 9 |
| 2010 | 2 | 2 |
| 2011 | 4 | 2 |
| 2012 | 1 | 1 |
| 2013 | 10 | 6 |
| 2014 | 6 | 3 |
| 2015 | 4 | 5 |
| 2016 | 1 | 5 |
| 2017 | 9 | 0 |
| 2018 | 4 | 5 |
| 2019 | 3 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 2 |
| 2022 | 4 | 1 |
| 2023 | 1 | 2 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High security device for monitoring a door, compartment or other covered opening1 Sep 2026US 12,725,499 B2Aerosens LLC
- Control of RFID devices for increased reliability and effectiveness in an RFID electronic article surveillance system3 Dec 2024US 12,159,521 B2Avery Dennison Retail Information Services LLC
- System for monitoring and controlling shopping cart usage14 May 2024US 11,981,365 B2Gatekeeper Systems, Inc.
- Navigation systems and methods for wheeled objects8 Aug 2023US 11,718,336 B2Gatekeeper Systems, Inc.
- Method of managing an output power delivered by an antenna of a NFC apparatus and NFC apparatus15 Nov 2022US 11,501,093 B2STMicroelectronics Austria GmbH
- High security device for monitoring a door, compartment or other covered opening19 Jun 2025US 2025/0201094 A1Aerosens LLC
- Control of RFID Devices for Increased Reliability and Effectiveness in an RFID Electronic Article Surveillance System2 Mar 2023US 2023/0068929 A1Avery Dennison Retail Information Services LLC
- System for monitoring and controlling shopping cart usage23 Feb 2023US 2023/0057163 A1Gatekeeper Systems, Inc.
- System for monitoring and controlling shopping cart usage21 Apr 2022US 2022/0119027 A1Gatekeeper Systems, Inc.
- System for monitoring and controlling shopping cart usage22 Jul 2021US 2021/0221420 A1Gatekeeper Systems, Inc.
Most cited
By later US patents
- RF tagging system including RF tags with variable frequency resonant circuits416US 5,446,447 AMotorola, Inc. · 1995
- Object tracking system with non-contact object detection and identification353US 6,204,764 B1Key-Trak, Inc. · 2001
- Article tracking system and method217US 6,883,710 B2Amerasia International Technology, Inc. · 2005
- Object control and tracking system with zonal transition detection193US 6,427,913 B1Key-Trak, Inc. · 2002
- Antenna arrangement for RFID smart tags191US 6,703,935 B1Amerasia International Technology, Inc. · 2004