E01B 31/20
Working or treating non-metal sleepers in or on the line
Official title: Working or treating non-metal sleepers in or on the line, e.g. marking, creosoting (working metal sleepers E01B31/02)
E01B31/20 (Working or treating non-metal sleepers in or on the line) appears on 57 US grants and 49 published applications in this corpus.
Search patents in E01B- Granted patents
- 57
- Published applications
- 49
- Assignees
- 43
- Inventors
- 107
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 3 |
| 2013 | 2 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 4 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 4 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 2 | 7 |
| 2022 | 4 | 2 |
| 2023 | 2 | 1 |
| 2024 | 3 | 3 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mechanism for reciprocal movement of stacks of sleepers, and railway vehicle comprising such a mechanism15 Apr 2025US 12,276,070 B2Matisa Materiel Industriel S.A.
- Drill for drilling railway sleepers21 Jan 2025US 12,202,056 B2Cembre S.p.A.
- Railway weed control vehicle2 Jul 2024US 12,024,837 B2Discovery Purchaser Corporation
- Single-plane multi-functional railway component handling system11 Jun 2024US 12,006,637 B2MOW Equipment Solutions, Inc.
- Rail tool-holder cart26 Mar 2024US 11,939,727 B2Cembre S.p.A.
- Application of a highly modified asphalt binder for protection from water intrusion into wooden railroad ties9 Apr 2026US 2026/0098385 A1Heritage Research Group
- Adzer machine having a head assembly with a cylindrical drum27 Nov 2025US 2025/0361682 A1Progress Rail Services Corporation
- Single-plane multi-functional railway component handling system28 Nov 2024US 2024/0392515 A1MOW Equipment Solutions, Inc.
- Single-plane multi-functional railway component handling system18 Jul 2024US 2024/0240410 A9MOW Equipment Solutions, Inc.
- Vision-Based Railway Component Characterization and Method22 Feb 2024US 2024/0060245 A1Racine Railroad Products, Inc.
Most cited
By later US patents
- Drill for drilling crossties, particularly for use in the railroad sector67US 5,961,257 ACembre S.p.A. · 1999
- Railroad tie plug driver21US 4,785,692 A1988
- Method of and arrangement for correcting the height of railway upper structures15US 4,232,822 AEd. Zublin Aktiengesellschaft · 1980
- Wood crossties with cellular plastic inserts14US 4,134,546 AThe Dow Chemical Company · 1979
- Apparatus for the replacement of rails of a track13US 4,301,738 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1981