E01B 7/10
Frogs
E01B7/10 (Frogs) appears on 77 US grants and 40 published applications in this corpus.
Search patents in E01B- Granted patents
- 77
- Published applications
- 40
- Assignees
- 59
- Inventors
- 137
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 3 |
| 2006 | 4 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 3 | 1 |
| 2014 | 3 | 0 |
| 2015 | 0 | 3 |
| 2016 | 2 | 2 |
| 2017 | 0 | 3 |
| 2018 | 1 | 2 |
| 2019 | 3 | 2 |
| 2020 | 1 | 3 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 3 |
| 2024 | 1 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Article transport facility28 Jul 2026US 12,692,666 B2Daifuku Co., Ltd.
- Gapless railway diamond: a new type of railway track component providing unbroken running surfaces across the flangeways of an intersecting railway line31 Mar 2026US 12,590,421 B2
- Frog for switches and crossings8 Apr 2025US 12,270,157 B2Vossloh Cogifer
- Inner guide type rail switch and rail transit system having same29 Oct 2024US 12,129,604 B2BYD Company Limited
- Self guarded frog copper weld fixture31 Oct 2023US 11,802,379 B1
- Points or crossing component with releasable connection and method and arrangement for monitoring the releasable connection1 Jan 2026US 2026/0001579 A1Voestalpine Railway Systems GmbH
- 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
- Moveable Point Frog Friction-Reducing Assembly28 Nov 2024US 2024/0392512 A1voestalpine Railway Systems Nortrak LLC
- Frog for switches and crossings9 May 2024US 2024/0150971 A1Vossloh Cogifer
Most cited
By later US patents
- Bolt-nut assembly for railroad crossing frogs24US 5,413,442 ABarnes Group Inc. · 1995
- Railway switch comprising a frog having a movable main point and auxiliary point15US 4,953,814 AVoest-Alpine Maschinenbau Gesellshaft m.b.H. · 1990
- Railroad frog crossing bolt and nut assembly for clamping railroad rail sections together14US 5,743,496 AUpcor, Inc. · 1998
- Railroad frog having movable wing rails13US 4,637,578 AAbex Corporation · 1987
- Frog, in particular frog point, for rail crossing or rail switches as well as process for producing same12US 4,514,235 AVoest-Alpine Aktiengesellschaft · 1985