E01B 27/102
Removing unwanted material without removing the ballast
Official title: {Removing unwanted material without removing the ballast}
E01B27/102 (Removing unwanted material without removing the ballast) appears on 11 US grants and 7 published applications in this corpus.
Search patents in E01B- Granted patents
- 11
- Published applications
- 7
- Assignees
- 6
- Inventors
- 19
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 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 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for subgrade stabilization of railroad bed21 Oct 2025US 12,448,738 B2Soil-Nail Holdings, LLC
- Vehicle, system and method for railway track clearing4 Mar 2025US 12,241,215 B2Aitonomi AG
- System and method for sub-grade stabilization of railroad bed14 Sep 2021US 11,118,315 B2R&B Leasing, LLC
- Tunnel cleaning device1 Dec 2020US 10,850,313 B2Brügger HTB GmbH
- System and method for mobile subvehicular access and treatment of ground surfaces about occupied rail tracks10 Oct 2017US 9,781,914 B2
- System And Method For Subgrade Stabilization Of Railroad Bed22 Jan 2026US 2026/0022522 A1R&B Leasing, LLC
- Vehicle, system and method for railway track clearing21 Jul 2022US 2022/0228335 A1Aitonomi AG
- System And Method For Subgrade Stabilization Of Railroad Bed2 Dec 2021US 2021/0372055 A1R&B Leasing, LLC
- System and Method for Sub-grade Stabilization of Railroad Bed22 Aug 2019US 2019/0257036 A1R&B Leasing, LLC
- Tunnel cleaning device27 Dec 2018US 2018/0369884 A1Brügger HTB GmbH
Most cited
By later US patents
- Magnetic sweeper apparatus and method13US 5,481,983 ABurlington Northern Railroad Company · 1996
- Mobile track bed cleaning machine and method11US 4,938,239 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1990
- Machine for sucking up rail ballast7US 5,611,403 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1997
- Machine for aspirating ballast from a ballast bed5US 5,456,181 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1995
- Mobile machine for withdrawing ballast from a ballast bed4US 5,502,904 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1996