G01S 19/50
Whereby the position solution is constrained to lie upon a particular curve
Official title: whereby the position solution is constrained to lie upon a particular curve or surface, e.g. for locomotives on railway tracks
G01S19/50 (Whereby the position solution is constrained to lie upon a particular curve) appears on 293 US grants and 276 published applications in this corpus.
Search patents in G01S- Granted patents
- 293
- Published applications
- 276
- Assignees
- 163
- Inventors
- 549
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 15 |
| 2003 | 12 | 13 |
| 2004 | 14 | 11 |
| 2005 | 10 | 12 |
| 2006 | 9 | 5 |
| 2007 | 4 | 8 |
| 2008 | 5 | 12 |
| 2009 | 7 | 10 |
| 2010 | 8 | 8 |
| 2011 | 8 | 5 |
| 2012 | 5 | 4 |
| 2013 | 6 | 10 |
| 2014 | 10 | 4 |
| 2015 | 5 | 6 |
| 2016 | 9 | 8 |
| 2017 | 16 | 9 |
| 2018 | 15 | 14 |
| 2019 | 27 | 17 |
| 2020 | 19 | 17 |
| 2021 | 11 | 11 |
| 2022 | 17 | 16 |
| 2023 | 17 | 19 |
| 2024 | 12 | 16 |
| 2025 | 14 | 15 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mac method for monitoring, with common bias compensation, the integrity of a point positioning process using virtual beacons19 May 2026US 12,631,770 B2Gts France
- Error characterization for GNSS-based position estimates on constrained routes5 May 2026US 12,618,982 B2HERE Global B. V.
- Collision protection and safety system for rail vehicles31 Mar 2026US 12,589,785 B2Harsco Technologies LLC
- User interface-assisted vehicle positioning10 Feb 2026US 12,546,606 B2QUALCOMM Incorporated
- Updating vehicle attitude for extended dead reckoning accuracy27 Jan 2026US 12,535,323 B2
- System and method of determining a geographical location of one or more computing devices16 Jul 2026US 2026/0202550 A1Eye-Net Mobile Ltd.
- Method and system for vehicle route determination based on motion data23 Apr 2026US 2026/0110547 A1Cambridge Mobile Telematics Inc.
- Methods and systems for terrain-based localization of a vehicle23 Apr 2026US 2026/0110804 A1ClearMotion, Inc.
- Positioning method capable of fusing historical operation track and beidou navigation, and apparatus thereof9 Apr 2026US 2026/0097797 A1Casco Signal Ltd.
- External sensor data usage for improved dead reckoning2 Apr 2026US 2026/0093046 A1QUALCOMM Incorporated
Most cited
By later US patents
- Method and system for controlling a vehicle669US 7,085,637 B2Intelligent Technologies International, Inc. · 2006
- Method and system for detecting objects external to a vehicle669US 7,202,776 B2Intelligent Technologies International, Inc. · 2007
- Navigation system configured to integrate motion sensing device inputs480US 9,002,641 B2Hand Held Products, Inc. · 2015
- Method and system for using altitude information in a satellite positioning system369US 6,061,018 ASnapTrack, Inc. · 2000
- Method and apparatus for measurement processing of satellite positioning system (SPS) signals357US 6,313,786 B1SnapTrack, Inc. · 2001