E01B 2202/06
Use of friction-reducing surfaces
E01B2202/06 (Use of friction-reducing surfaces) appears on 10 US grants and 3 published applications in this corpus.
Search patents in E01B- Granted patents
- 10
- Published applications
- 3
- Assignees
- 13
- Inventors
- 22
- Latest grant
- 18 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 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 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Switch device18 Oct 2022US 11,473,247 B2Voestalpine Bwg GmbH & Co. KG
- Method for coating a surface of a track component, in addition to a track component6 Jun 2006US 7,056,596 B2BWG GmbH & Co. KG
- Device for securing stock rails in railway switches4 May 1999US 5,899,417 AVAE GmbH
- Device for fastening slide inserts18 Oct 1994US 5,356,224 AVoest-Alpine Eisenbahnsysteme Aktiesengesselschaft
- Rail switching device including an antifriction insert7 Jul 1992US 5,127,613 AMagna Holding Anstalt
- Railway switch with lubricious liner12 May 2022US 2022/0145547 A1Roller Bearing Company of America, Inc.
- Switch device9 Jul 2020US 2020/0217019 A1Voestalpine Bwg GmbH & Co. KG
- Method for coating a surface of a track component, in addition to a track component22 Sep 2005US 2005/0208310 A1BWG GmbH & Co. KG
Most cited
By later US patents
- Turnout unit for railway track8US 4,890,804 AKanto Bunkiki Kabushiki Kaisha · 1990
- Railway switching points7US 4,105,175 AGestivalmo Societe Anonyme Holding · 1978
- Rail switch arrangement5US 4,131,255 A1978
- Stock-rail fastening for switches and crossings of railway track installations4US 3,986,667 ASchwihag Gesellschaft fur Eisenbauh-Oberbau mbH · 1976
- Rail switching device including an antifriction insert4US 5,127,613 AMagna Holding Anstalt · 1992