G01S 1/725
Marker, boundary, call-sign or like beacons transmitting signals not carrying directional information
Official title: {Marker, boundary, call-sign or like beacons transmitting signals not carrying directional information}
G01S1/725 (Marker, boundary, call-sign or like beacons transmitting signals not carrying directional information) appears on 91 US grants and 100 published applications in this corpus.
Search patents in G01S- Granted patents
- 91
- Published applications
- 100
- Assignees
- 70
- Inventors
- 213
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 3 |
| 2006 | 2 | 2 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 7 |
| 2013 | 2 | 8 |
| 2014 | 6 | 12 |
| 2015 | 8 | 11 |
| 2016 | 7 | 10 |
| 2017 | 8 | 4 |
| 2018 | 14 | 5 |
| 2019 | 4 | 8 |
| 2020 | 9 | 6 |
| 2021 | 2 | 2 |
| 2022 | 3 | 6 |
| 2023 | 4 | 3 |
| 2024 | 6 | 2 |
| 2025 | 5 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for enabling determination of a position of a receiver within a space21 Oct 2025US 12,449,498 B2Takemetuit Inc.
- Acoustic positioning transmitter and receiver system and method20 May 2025US 12,307,166 B2Sonitor Technologies AS
- System and method for improving mental mapping skills for enhanced orientation and mobility for the visually impaired15 Apr 2025US 12,274,664 B1
- Indoor location position system and method8 Apr 2025US 12,270,925 B2
- Wireless location system25 Mar 2025US 12,262,284 B2CenTrak, Inc.
- Precise indoor positioning and event detection system using acoustic signals, imu data, wireless clock synchronization, shared beacon control, multi-speaker devices and targeted signal searching14 May 2026US 2026/0133278 A1
- System and method for enabling determination of a position of a receiver within a space29 Jan 2026US 2026/0029499 A1Takemetuit Inc.
- Indoor location position system and method17 Jul 2025US 2025/0231269 A1
- Wireless location system26 Jun 2025US 2025/0211946 A1CenTrak, Inc.
- System and method for enabling determination of a position of a receiver within a space22 Aug 2024US 2024/0280660 A1Takemetuit Inc.
Most cited
By later US patents
- Locator beacon and radar application for mobile device171US 8,847,754 B22014
- Portable integrated indoor and outdoor positioning system and method103US 6,459,989 B1SRI International · 2002
- Underwater acoustic data acquisition system61US 5,047,990 AThe United States of America as represented by the Secretary of the Navy · 1991
- Location system using retransmission of identifying information40US 6,970,097 B2GE Medical Systems Information Technologies, Inc. · 2005
- Spread spectrum underwater location beacon system38US 4,951,263 ASandia Research Associates, Inc. · 1990