E01B 11/46
General methods for making gapless tracks
E01B11/46 (General methods for making gapless tracks) appears on 7 US grants and 7 published applications in this corpus.
Search patents in E01B- Granted patents
- 7
- Published applications
- 7
- Assignees
- 7
- Inventors
- 20
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Welding unit for welding rails of a track22 Apr 2025US 12,281,448 B2Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- Frog for switches and crossings8 Apr 2025US 12,270,157 B2Vossloh Cogifer
- Rail tool-holder cart26 Mar 2024US 11,939,727 B2Cembre S.p.A.
- Method and mould for welding the ends of two rail portions3 Jul 2018US 10,011,956 B2Sncf Reseau
- Method of cooling rail weld zone, and rail weld joint15 Oct 2013US 8,557,064 B2Nippon Steel & Sumitomo Metal Corporation
- Manufacturing method of flash butt welded rail1 Oct 2026US 2026/0295710 A1Nippon Steel Corporation
- Frog for switches and crossings9 May 2024US 2024/0150971 A1Vossloh Cogifer
- Welding unit for welding rails of a track6 Oct 2022US 2022/0316146 A1Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- A rail tool-holder cart30 Jul 2020US 2020/0240088 A1Cembre S.p.A.
- Frog for switches and crossings23 Jul 2020US 2020/0232167 A1
Most cited
By later US patents