B61K 9/06
By detecting or indicating heat radiation from overheated axles
Official title: by detecting or indicating heat radiation from overheated axles
B61K9/06 (By detecting or indicating heat radiation from overheated axles) appears on 49 US grants and 27 published applications in this corpus.
Search patents in B61K- Granted patents
- 49
- Published applications
- 27
- Assignees
- 24
- Inventors
- 71
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 6 |
| 2014 | 1 | 1 |
| 2015 | 5 | 2 |
| 2016 | 3 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automated on-wheel thermography for safety and prevention13 May 2025US 12,296,867 B2Delta Thermal, Inc.
- In-motion high-speed non-destructive evaluation for railcar axles14 Jul 2020US 10,710,615 B2The Boeing Company
- Vehicle mounted monitoring system15 Oct 2019US 10,442,449 B2Rail Vision Europe Ltd.
- Infrared-based vehicle component imaging and analysis21 Aug 2018US 10,054,488 B2International Electronic Machines Corp.
- Temperature detection systems and methods for railway applications3 Jul 2018US 10,012,546 B2Progress Rail Services Corporation
- Automated on-wheel thermography for safety and prevention11 Jun 2026US 2026/0159141 A1Delta Thermal, Inc.
- Systems and methods for detecting applied railcar brakes using thermal imaging26 Feb 2026US 2026/0054755 A1BNSF Railway Company
- Automated on-wheel thermography for safety and prevention17 Apr 2025US 2025/0121862 A1Delta Thermal, Inc.
- Imaging and monitoring of high-speed objects17 Apr 2025US 2025/0121864 A1Delta Thermal, Inc.
- Device for monitoring rail bogie and associated rail bogie6 Mar 2025US 2025/0074484 A1
Most cited
By later US patents
- Thermal sensor for detection of railroad bearing failures58US 4,812,826 ACarnegie Mellon University · 1989
- Axle temperature monitor43US 6,286,992 B1Meritor Heavy Vehicle Systems, LLC · 2001
- Railroad wheel temperature sensor with infrared array40US 5,331,311 AServo Corporation of America · 1994
- Railroad hot box detector36US 4,659,043 AServo Corporation of America · 1987
- Detection of overheated railroad wheel and axle components34US 5,060,890 AHarmon Industries, Inc. · 1991