E01B 29/46
Devices for holding, positioning, or urging together the rail ends
Official title: Devices for holding, positioning, or urging together the rail ends (adjusting the joint by moving rails E01B29/20)
E01B29/46 (Devices for holding, positioning, or urging together the rail ends) appears on 47 US grants and 32 published applications in this corpus.
Search patents in E01B- Granted patents
- 47
- Published applications
- 32
- Assignees
- 21
- Inventors
- 67
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 5 |
| 2018 | 3 | 1 |
| 2019 | 0 | 4 |
| 2020 | 3 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 4 |
| 2025 | 2 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tool for aligning rail segments6 Jan 2026US 12,516,477 B2Caterpillar Inc.
- Automated geometry and crowning apparatus for use of mobile electric flash-butt welding of railroad rails and rail inserts11 Nov 2025US 12,466,008 B2One Rail Group, LLC
- Welding unit for welding rails of a track22 Apr 2025US 12,281,448 B2Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- Automated geometry and crowning apparatus for use of mobile electric flash-butt welding of railroad rails and rail inserts5 Mar 2024US 11,919,108 B2One Rail Group, LLC
- Welding unit and method for welding rails of a track8 Aug 2023US 11,717,908 B2Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- Automated Geometry and Crowning Apparatus for Use of Mobile Electric Flash-Butt Welding of Railroad Rails and Rail Inserts12 Mar 2026US 2026/0071391 A1
- Automated Geometry and Crowning Apparatus for Use of Mobile Electric Flash-Butt Welding of Railroad Rails and Rail Inserts5 Feb 2026US 2026/0034616 A1One Rail Group, LLC
- Tool for aligning rail segments22 Aug 2024US 2024/0279878 A1Caterpillar Inc.
- Automated Geometry and Crowning Apparatus for Use of Mobile Electric Flash-Butt Welding of Railroad Rails and Rail Inserts23 May 2024US 2024/0165750 A1One Rail Group, LLC
- Rail thread box assembly14 Mar 2024US 2024/0083471 A1Transportation IP Holdings, LLC
Most cited
By later US patents
- Method of welding continuous rails and apparatus therefor25US 4,414,454 AH. A. Schlatter AG · 1983
- Electric flash-butt welding machine and method of providing a welded joint between adjacent ends of rail sections25US 4,929,816 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft · 1990
- Mobile track working machine21US 4,323,013 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1982
- Device for aligning and retaining two rails whose ends are to be welded together15US 5,575,416 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1996
- Aligning rail ends for welding14US 4,674,730 A1987