E01B 7/04
Constructions with tongues turning about a vertical pivot at the end
E01B7/04 (Constructions with tongues turning about a vertical pivot at the end) appears on 6 US grants and 5 published applications in this corpus.
Search patents in E01B- Granted patents
- 6
- Published applications
- 5
- Assignees
- 6
- Inventors
- 17
- Latest grant
- 6 Mar 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 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 | 1 | 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 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 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 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Tongue switch6 Mar 2007US 7,185,860 B2VAE Nortrak North America, Inc.
- Tongue switch18 Oct 2005US 6,955,326 B2VAE Nortrak North America, Inc.
- Switch point roller assist apparatus26 Mar 1996US 5,501,418 A
- Girder type switch track16 Mar 1993US 5,193,767 AHSST Corporation
- All weather switch for railroads13 Aug 1985US 4,534,527 ACanadian Patents and Development Limited
- Turnout and rail transit system6 Mar 2025US 2025/0075437 A1BYD Company Limited
- Turnout, crossover turnout, and rail transit system6 Mar 2025US 2025/0075438 A1BYD Company Limited
- Solar Personal Rapid Transit System with Autonomous Pods30 Mar 2023US 2023/0095321 A1Solar Mobility, LLC
- Tongue switch2 Jun 2005US 2005/0116118 A1VAE Nortrak North America, Inc.
- Tongue switch4 Dec 2003US 2003/0222181 A1VAE Nortrak North America, Inc.
Most cited
By later US patents
- Girder type switch track19US 5,193,767 AHSST Corporation · 1993
- Switch point roller assist apparatus11US 5,501,418 A1996
- Railway double tongue switch3US 4,251,042 AAbex Corporation · 1981
- All weather switch for railroads3US 4,534,527 ACanadian Patents and Development Limited · 1985
- Tongue switch3US 7,185,860 B2VAE Nortrak North America, Inc. · 2007