E01B 3/00
Transverse or longitudinal sleepers
Official title: Transverse or longitudinal sleepers (for switches or crossings E01B7/22); Other means resting directly on the ballastway for supporting rails
E01B3/00 (Transverse or longitudinal sleepers) appears on 277 US grants and 264 published applications in this corpus.
Search patents in E01B- Granted patents
- 277
- Published applications
- 264
- Assignees
- 195
- Inventors
- 578
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 12 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 7 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 1 |
| 2002 | 4 | 6 |
| 2003 | 6 | 9 |
| 2004 | 8 | 10 |
| 2005 | 1 | 12 |
| 2006 | 2 | 7 |
| 2007 | 5 | 9 |
| 2008 | 2 | 11 |
| 2009 | 3 | 7 |
| 2010 | 8 | 15 |
| 2011 | 8 | 7 |
| 2012 | 5 | 15 |
| 2013 | 10 | 10 |
| 2014 | 7 | 14 |
| 2015 | 9 | 9 |
| 2016 | 7 | 18 |
| 2017 | 13 | 8 |
| 2018 | 5 | 11 |
| 2019 | 10 | 11 |
| 2020 | 10 | 7 |
| 2021 | 3 | 11 |
| 2022 | 7 | 14 |
| 2023 | 6 | 13 |
| 2024 | 7 | 12 |
| 2025 | 9 | 7 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nonwoven fabric-integrated sleeper pad using rubber pad embedded with stiffener and methods of manufacturing and constructing the same22 Sep 2026US 12,742,294 B2Korea Railroad Research Institute
- Bridge for a rail vehicle and method for assembling a bridge beam on such a bridge8 Sep 2026US 12,729,487 B2Vossloh Fastening Systems GmbH
- Polymer-based railroad tie having enhanced ballast interaction2 Jun 2026US 12,644,232 B2Rutgers, The State University of New Jersey
- Rail fastening system and associated rail track19 May 2026US 12,630,982 B2Destec Pty Ltd
- Polymeric composite, product with polymer composite, dry process for preparing polymer composite, process for preparing a sleeper5 May 2026US 12,617,722 B2Sileto Technologies LLC
- A longitudinal railway sleeper8 Oct 2026US 2026/0308855 A1
- Steel monoblock sleeper and method for producing same1 Oct 2026US 2026/0297856 A1Baupoly AG
- Timber rail crosstie preservation24 Sep 2026US 2026/0286618 A1Copper Care Wood Preservatives, Inc.
- Polymer-based railroad tie having enhanced ballast interaction24 Sep 2026US 2026/0286620 A1Rutgers, The State University of New Jersey
- Rail fastening system and associated rail track3 Sep 2026US 2026/0258609 A1Destec Pty Ltd
Most cited
By later US patents
- Reinforced molded lignocellulosic crosstie and railway assembly110US 4,150,790 ADant & Russell, Inc. · 1979
- Composite module with reinforced shell81US 4,229,497 AMaso-Therm Corporation · 1980
- Composite material and synthetic sleeper using the composite material62US 6,605,343 B1Sekisui Chemical Co., Ltd. · 2003
- Composite building materials from recyclable waste42US 5,916,932 ARutgers, The State University · 1999
- Composite building materials from recyclable waste40US 5,789,477 ARutgers, The State University · 1998