E01B 31/17
By grinding
Official title: by grinding
E01B31/17 (By grinding) appears on 99 US grants and 52 published applications in this corpus.
Search patents in E01B- Granted patents
- 99
- Published applications
- 52
- Assignees
- 46
- Inventors
- 143
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 6 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 3 |
| 2004 | 4 | 1 |
| 2005 | 2 | 0 |
| 2006 | 1 | 1 |
| 2007 | 2 | 2 |
| 2008 | 3 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 0 | 0 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 2 | 3 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 5 |
| 2021 | 1 | 6 |
| 2022 | 3 | 4 |
| 2023 | 0 | 0 |
| 2024 | 3 | 9 |
| 2025 | 0 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Road-rail dual purpose quick disassembly and assembly type rail grinding maintenance robot29 Sep 2026US 12,746,634 B2Beijing Jiaotong University
- Method for reprofiling at least one switch blade in points laid in a railway track26 May 2026US 12,637,813 B2MATE GmbH
- Enhanced rail grinding system and method thereof4 Jun 2024US 12,000,094 B2Loram Maintenance of Way, Inc.
- Method and system for performing and comparing financial analysis of different rail life scenarios in a rail system2 Apr 2024US 11,947,881 B2Loram Technologies, Inc.
- Method and system for predicting wear in a rail system6 Feb 2024US 11,893,322 B2Loram Technologies, Inc.
- Grinding simulation test device and method for steel turnout rail of rail transit18 Jun 2026US 2026/0168908 A1China Academy of Machinery Wuhan Research Institute of Materials Protection Co. Ltd.
- Rail grinding machine and method for grinding a rail of a track16 Apr 2026US 2026/0102868 A1Robel Bahnbaumaschinen GmbH
- Rail grinding machine and method thereof18 Sep 2025US 2025/0290254 A1Sperling Railway Services, Inc.
- Rail grinding machine and method thereof18 Sep 2025US 2025/0290255 A1Sperling Railway Services, Inc.
- Method and rail vehicle for carrying out work on a railway track16 Jan 2025US 2025/0019908 A1Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft M. B. H.
Most cited
By later US patents
- Grinding device for the reprofiling of a rail of a railway track31US 4,492,059 ASpeno International S. A. · 1985
- Rail grinding system22US 4,178,724 AHarsco Corporation · 1979
- Method of programming and performing the reprofiling of rails of a railroad track and railroad vehicle for carrying out the same22US 5,134,808 ASpeno International S. A. · 1992
- Reprofiling method of the rails of a railroad track and railroad vehicle for performing the same21US 5,086,591 ASpeno International S. A. · 1992
- Rail grinding machine20US 4,050,196 AFranz Plasser Bahnbaumaschinen-Industrie-Gesellschaft m.b.H. · 1977