B61L 2205/04
Satellite based navigation systems
Official title: Satellite based navigation systems, e.g. global positioning system [GPS]
B61L2205/04 (Satellite based navigation systems) appears on 579 US grants and 641 published applications in this corpus.
Search patents in B61L- Granted patents
- 579
- Published applications
- 641
- Assignees
- 222
- Inventors
- 1,149
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 2 |
| 2002 | 19 | 16 |
| 2003 | 20 | 17 |
| 2004 | 15 | 50 |
| 2005 | 17 | 21 |
| 2006 | 22 | 25 |
| 2007 | 14 | 23 |
| 2008 | 9 | 10 |
| 2009 | 13 | 14 |
| 2010 | 18 | 14 |
| 2011 | 4 | 8 |
| 2012 | 11 | 11 |
| 2013 | 18 | 23 |
| 2014 | 17 | 13 |
| 2015 | 13 | 10 |
| 2016 | 20 | 34 |
| 2017 | 21 | 42 |
| 2018 | 29 | 39 |
| 2019 | 32 | 40 |
| 2020 | 33 | 44 |
| 2021 | 25 | 33 |
| 2022 | 26 | 34 |
| 2023 | 33 | 42 |
| 2024 | 36 | 33 |
| 2025 | 31 | 27 |
| 2026 | 24 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for detecting tanks in railway environments1 Sep 2026US 12,722,670 B2BNSF Railway Company
- Fuel consumption system for locomotive18 Aug 2026US 12,709,308 B2Caterpillar Inc.
- System and method to determine a location of a designated position of a vehicle system4 Aug 2026US 12,698,019 B2Transportation IP Holdings, LLC
- Railway communications system21 Jul 2026US 12,686,424 B2
- Digital freight car—automatic wagon list14 Jul 2026US 12,679,431 B2Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
- Monitoring system and method8 Oct 2026US 2026/0307694 A1Transportation IP Holdings, LLC
- Intersection management system17 Sep 2026US 2026/0274316 A1Transportation IP Holdings, LLC
- Method and system for cooling a traction component of a rail vehicle27 Aug 2026US 2026/0249890 A1Siemens Mobility GmbH
- System and method for a virtual approach signal6 Aug 2026US 2026/0225629 A1BNSF Railway Company
- Railway train-ground interconnected perception and early warning method6 Aug 2026US 2026/0225631 A1Casco Signal Ltd.
Most cited
By later US patents
- Local communication network for power reduction and enhanced reliability in a multiple node tracking system374US 5,691,980 AGeneral Electric Company · 1997
- Vehicle-based navigation system with smart map filtering, portable unit home-base registration and multiple navigation system preferential use356US 6,553,308 B1Donnelly Corporation · 2003
- Use of mutter mode in asset tracking for gathering data from cargo sensors327US 5,686,888 AGeneral Electric Company · 1997
- Vehicle maintenance management system and method300US 6,301,531 B1General Electric Company · 2001
- Railcar location using mutter networks and locomotive transmitter during transit292US 5,682,139 AGeneral Electric Company · 1997