G01S 15/874
Combination of several spaced transponders or reflectors of known location for determining
Official title: {Combination of several spaced transponders or reflectors of known location for determining the position of a receiver (G01S15/872 takes precedence)}
G01S15/874 (Combination of several spaced transponders or reflectors of known location for determining) appears on 40 US grants and 29 published applications in this corpus.
Search patents in G01S- Granted patents
- 40
- Published applications
- 29
- Assignees
- 30
- Inventors
- 83
- Latest grant
- 17 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 4 |
| 2019 | 1 | 4 |
| 2020 | 5 | 2 |
| 2021 | 4 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Underwater optical positioning systems and methods17 Dec 2024US 12,169,240 B23D at Depth, Inc.
- Underwater optical metrology system19 Nov 2024US 12,146,951 B23D at Depth, Inc.
- Underwater optical metrology system3 Oct 2023US 11,774,586 B23D at Depth, Inc.
- Underwater optical metrology system21 Sep 2021US 11,125,875 B23D at Depth, Inc.
- Sonar sensor fusion and model based virtual and augmented reality systems and methods27 Apr 2021US 10,989,537 B2FLIR Belgium BVBA
- Acoustic navigational aid system and method4 Dec 2025US 2025/0368304 A1Deepwater Buoyancy, Inc.
- Underwater optical metrology system19 Jun 2025US 2025/0199169 A13D at Depth, Inc.
- Range finding1 May 2025US 2025/0138150 A1Teknologian tutkimuskeskus VTT Oy
- Underwater optical positioning systems and methods1 May 2025US 2025/0138185 A13D at Depth, Inc.
- Method, vehicle, system and computer program for determining and/or improving a position estimation of a vehicle1 Feb 2024US 2024/0036587 A1
Most cited
By later US patents
- Method and device for sensing of obstacles for an autonomous device281US 5,867,800 AAktiebolaget Electrolux · 1999
- System and method for sonic positioning167US 5,491,670 A1996
- Method and apparatus for inspecting a submerged structure139US 6,317,387 B12001
- Rotary encoder for intravascular ultrasound catheter119US 5,485,845 AHewlett-Packard Company · 1996
- Ultrasonic position detecting system92US 4,506,354 APosition Orientation Systems, Ltd. · 1985