E01B 9/40
Tie-plates for flat-bottom rails
Official title: Tie-plates for flat-bottom rails (manufacture B21)
E01B9/40 (Tie-plates for flat-bottom rails) appears on 68 US grants and 59 published applications in this corpus.
Search patents in E01B- Granted patents
- 68
- Published applications
- 59
- Assignees
- 44
- Inventors
- 112
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 4 |
| 2005 | 4 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 3 | 4 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 10 |
| 2017 | 5 | 3 |
| 2018 | 3 | 5 |
| 2019 | 6 | 2 |
| 2020 | 3 | 5 |
| 2021 | 3 | 4 |
| 2022 | 2 | 1 |
| 2023 | 5 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rail clips3 Feb 2026US 12,540,055 B2
- Rail tie plate orienting and distribution system and method29 Apr 2025US 12,286,759 B2Herzog Railroad Services, Inc.
- Vehicle rail mounting device19 Nov 2024US 12,146,271 B2Specter Innovations Group Pty Ltd.
- Modular fastening for railway crossings18 Jun 2024US 12,012,700 B2Pandrol Iberica S.A.U.
- High-resilient special trackwork rail fastener24 Oct 2023US 11,795,627 B2L. B. Foster Company
- Baseplate and baseplate assembly for a railway rail24 Sep 2026US 2026/0286619 A1Intercast & Forge Pty Limited
- Extruded pvc glass fiber reinforced railroad tie with enhanced thermal and mechanical stability29 Jan 2026US 2026/0028781 A1
- Rail tie plate orienting and distribution system and method9 May 2024US 2024/0150969 A1Herzog Railroad Services, Inc.
- High-resilient special trackwork rail fastener5 May 2022US 2022/0136177 A1L. B. Foster Company
- Improvement to Rail Clips23 Dec 2021US 2021/0395049 A1
Most cited
By later US patents