E01B 7/02
Tongues
Official title: Tongues; Associated constructions
E01B7/02 (Tongues) appears on 87 US grants and 65 published applications in this corpus.
Search patents in E01B- Granted patents
- 87
- Published applications
- 65
- Assignees
- 68
- Inventors
- 161
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 3 |
| 2004 | 3 | 4 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 2 | 6 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 3 | 2 |
| 2017 | 1 | 4 |
| 2018 | 0 | 5 |
| 2019 | 3 | 3 |
| 2020 | 4 | 6 |
| 2021 | 4 | 4 |
| 2022 | 4 | 2 |
| 2023 | 2 | 3 |
| 2024 | 1 | 1 |
| 2025 | 3 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switch arrangement for a track-borne vehicle3 Feb 2026US 12,540,441 B2Max Boegl Stiftung & Co. KG
- Switch point roller assembly15 Jul 2025US 12,359,377 B1voestalpine Railway Systems Nortrak LLC
- Light railway system8 Apr 2025US 12,270,158 B2Carpet Track Ltd
- Rail junction assembly4 Feb 2025US 12,215,465 B2Embedded Rail Technology Limited
- Gauge plate insulator16 Jul 2024US 12,037,750 B2Koppers Delaware, Inc.
- Railway Switch Rod Support Assembly9 Apr 2026US 2026/0098386 A1voestalpine Railway Systems Nortrak LLC
- Switch Point Roller Assembly16 Oct 2025US 2025/0320668 A1voestalpine Railway Systems Nortrak LLC
- 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
- Intelligent transportation system and method25 Jan 2024US 2024/0025456 A1
Most cited
By later US patents
- Girder type switch track19US 5,193,767 AHSST Corporation · 1993
- Dual switch system for common use by track guided rail vehicles and magnetic vehicles11US 4,870,906 AThyssen Industrie AG · 1989
- Switch point roller assist apparatus11US 5,501,418 A1996
- Switch blade rolling device11US 5,628,480 AEco Production Vresova, SPOL. S.R.O. · 1997
- Process for producing a component part of a railway switch or a railway crossing and component part of railway switches or railway crossings produced by such process8US 4,144,442 AVereinigte Osterreichische Eisen- und Stahlwerke-Alpine Montan Aktiengesellschaft · 1979