E01B 7/20
Safety means for switches
Official title: Safety means for switches, e.g. switch point protectors, auxiliary or guiding rail members
E01B7/20 (Safety means for switches) appears on 30 US grants and 24 published applications in this corpus.
Search patents in E01B- Granted patents
- 30
- Published applications
- 24
- Assignees
- 28
- Inventors
- 79
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 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 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 3 |
| 2015 | 1 | 1 |
| 2016 | 3 | 4 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Carrier lift locking structure and locking method to prevent lift deflection during carrier movement11 Aug 2026US 12,703,948 B2Mplus Co., Ltd.
- Article transport facility28 Jul 2026US 12,692,666 B2Daifuku Co., Ltd.
- Railroad equipment state determination apparatus and railroad equipment state determination method30 Jan 2024US 11,884,313 B2Kyosan Electric Mfg. Co., Ltd.
- Switch lock device for railway switching actuators8 Mar 2022US 11,267,495 B2Alstom Ferroviaria S.p.A.
- Third rail heater control system23 Feb 2021US 10,927,518 B2M.C. Dean Inc.
- Method and apparatus for securing a railroad switch2 Apr 2026US 2026/0092414 A1
- Carrier Lift Locking Structure And Locking Method To Prevent Lift Deflection During Carrier Movement25 Jul 2024US 2024/0247443 A1Mplus Co., Ltd.
- Article Transport Facility22 Jun 2023US 2023/0193565 A1Daifuku Co., Ltd.
- Systems for railroad switch position detection24 Dec 2020US 2020/0399836 A1Harsco Technologies LLC
- Railroad equipment state determination apparatus and railroad equipment state determination method3 Dec 2020US 2020/0377132 A1Kyosan Electric Mfg. Co., Ltd.
Most cited
By later US patents
- Latch mechanism for a railboard track switch cover15US 5,018,690 A1991
- Switch point guard14US 4,386,751 AWestern-Cullen-Hayes, Inc. · 1983
- Switch clearing system10US 6,065,721 A2000
- Apparatus for producing snow deflecting air curtains for railway switches9US 3,972,497 ACanadian Patents and Development Limited · 1976
- Device for securing in position guide rails9US 5,148,980 AVoest-Alpine Zeltweg Gesellschaft m.g.h. · 1992