E01B 31/08
Bending
Official title: Bending, e.g. for straightening rails or rail joints (for aligning rail ends to be welded E01B29/46)
E01B31/08 (Bending) appears on 6 US grants and 1 published applications in this corpus.
Search patents in E01B- Granted patents
- 6
- Published applications
- 1
- Assignees
- 5
- Inventors
- 9
- Latest grant
- 15 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 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 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rail treatment machine able to be moved on rails15 Nov 2022US 11,498,423 B2MATE GmbH
- Rail rolling apparatus and method of use10 Jan 2017US 9,540,773 B1
- Method for raising welded rail connections lying below the traveling surface on railroad tracks23 Jan 1996US 5,486,245 AElektro-Thermit GmbH
- Apparatus and method for straightening crane rails15 Oct 1991US 5,056,671 AHarnischfeger Corporation
- Mechanism for bending abutting rail section ends at rail joints in the operation of a track working machine17 May 1988US 4,744,302 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft
Most cited
By later US patents
- Mechanism for bending abutting rail section ends at rail joints in the operation of a track working machine8US 4,744,302 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft · 1988
- Apparatus and method for straightening crane rails7US 5,056,671 AHarnischfeger Corporation · 1991
- Bending and straightening apparatus3US 4,599,878 AThe Permanent Way Equipment Company Limited · 1986
- Rail rolling apparatus and method of use1US 9,540,773 B12017