E01B 9/54
Rail chairs
E01B9/54 (Rail chairs) appears on 6 US grants and 6 published applications in this corpus.
Search patents in E01B- Granted patents
- 6
- Published applications
- 6
- Assignees
- 9
- Inventors
- 14
- Latest grant
- 25 Aug 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Direct fixation fastener25 Aug 2020US 10,753,047 B2L. B. Foster Company
- Fastening rail in railway slide chair assembly25 Jan 2011US 7,874,527 B2BWG GmbH & Co. KG
- Spikeless tie plate fasteners, pre-plated railroad ties and related assemblies and methods14 Dec 2010US 7,850,090 B2
- Rail mounting assembly14 Sep 2004US 6,789,740 B2Advanced Track Products, LLC
- Foot support modification for railroad rails13 May 1997US 5,628,454 ASchwihag AG
- Direct fixation fastener18 Jan 2018US 2018/0016754 A1L. B. Foster Company
- Fastening Rail in Railway Slide Chair Assembly11 Dec 2008US 2008/0302881 A1BWG GmbH & Co. KG
- Spikeless tie plate fasteners, pre-plated railroad ties and related assemblies and methods29 May 2008US 2008/0121731 A1
- Spikeless tie plate fasteners, pre-plated railroad ties and related assemblies and methods28 Sep 2006US 2006/0214018 A1
- Spikeless tie plate fasteners, pre-plated railroad ties and related assemblies and methods28 Sep 2006US 2006/0214019 A1
Most cited
By later US patents