E01B 27/00
Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent
Official title: Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
E01B27/00 (Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent) appears on 678 US grants and 348 published applications in this corpus.
Search patents in E01B- Granted patents
- 678
- Published applications
- 348
- Assignees
- 212
- Inventors
- 553
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 16 | 0 |
| 1978 | 25 | 0 |
| 1979 | 12 | 0 |
| 1980 | 12 | 0 |
| 1981 | 19 | 0 |
| 1982 | 17 | 0 |
| 1983 | 14 | 0 |
| 1984 | 27 | 0 |
| 1985 | 18 | 0 |
| 1986 | 17 | 0 |
| 1987 | 12 | 0 |
| 1988 | 11 | 0 |
| 1989 | 18 | 0 |
| 1990 | 24 | 0 |
| 1991 | 14 | 0 |
| 1992 | 22 | 0 |
| 1993 | 12 | 0 |
| 1994 | 13 | 0 |
| 1995 | 15 | 0 |
| 1996 | 17 | 0 |
| 1997 | 10 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 8 |
| 2002 | 12 | 12 |
| 2003 | 13 | 11 |
| 2004 | 9 | 12 |
| 2005 | 11 | 8 |
| 2006 | 5 | 5 |
| 2007 | 2 | 8 |
| 2008 | 3 | 3 |
| 2009 | 5 | 3 |
| 2010 | 6 | 7 |
| 2011 | 4 | 6 |
| 2012 | 4 | 11 |
| 2013 | 8 | 11 |
| 2014 | 7 | 15 |
| 2015 | 10 | 16 |
| 2016 | 11 | 19 |
| 2017 | 14 | 27 |
| 2018 | 26 | 25 |
| 2019 | 22 | 24 |
| 2020 | 20 | 20 |
| 2021 | 15 | 26 |
| 2022 | 10 | 17 |
| 2023 | 16 | 23 |
| 2024 | 17 | 16 |
| 2025 | 24 | 12 |
| 2026 | 13 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System for working on a track29 Sep 2026US 12,747,542 B2Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- On-track maintenance machine and method for operating the machine8 Sep 2026US 12,729,489 B2Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- Track-tamping machine for compressing the ballast bed of a track25 Aug 2026US 12,716,177 B2
- Leveling system for lift device18 Aug 2026US 12,709,525 B2Oshkosh Corporation
- Route maintenance system and method4 Aug 2026US 12,698,600 B2Nordco Inc.
- Method and apparatus for determining the condition of a track bed by means of a tamping assembly1 Oct 2026US 2026/0297857 A1Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- Stabilizing assembly and method for stabilizing a track16 Jul 2026US 2026/0201654 A1Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- System And Method For Subgrade Stabilization Of Railroad Bed22 Jan 2026US 2026/0022522 A1R&B Leasing, LLC
- Tamping unit and method for tamping sleepers of a track20 Nov 2025US 2025/0354338 A1Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
- Device for detecting crossties of a track24 Jul 2025US 2025/0237021 A1HP3 Real GmbH
Most cited
By later US patents
- Leveling system for lift device134US 9,890,024 B2Oshkosh Corporation · 2018
- Leveling system for lift device109US 10,221,055 B2Oshkosh Corporation · 2019
- Leveling system for lift device102US 10,407,288 B2Oshkosh Corporation · 2019
- Railroad material cart98US 6,155,175 AERS Industries, Inc. · 2000
- Rail-bound transportation system for a track building machine74US 9,856,609 B2K & K Maschinenentwicklungs Ghbm & Co. KG · 2018