E01F 13/123
Depressible or retractable below the traffic surface
Official title: {depressible or retractable below the traffic surface, e.g. one-way spike barriers, power-controlled prong barriers}
E01F13/123 (Depressible or retractable below the traffic surface) appears on 109 US grants and 90 published applications in this corpus.
Search patents in E01F- Granted patents
- 109
- Published applications
- 90
- Assignees
- 45
- Inventors
- 156
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 4 |
| 2005 | 2 | 6 |
| 2006 | 6 | 7 |
| 2007 | 0 | 7 |
| 2008 | 4 | 6 |
| 2009 | 3 | 5 |
| 2010 | 6 | 4 |
| 2011 | 6 | 5 |
| 2012 | 5 | 3 |
| 2013 | 2 | 3 |
| 2014 | 4 | 3 |
| 2015 | 6 | 3 |
| 2016 | 2 | 3 |
| 2017 | 3 | 3 |
| 2018 | 4 | 4 |
| 2019 | 3 | 4 |
| 2020 | 3 | 5 |
| 2021 | 1 | 1 |
| 2022 | 2 | 6 |
| 2023 | 6 | 3 |
| 2024 | 3 | 1 |
| 2025 | 2 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tire spiker with extendable handle29 Sep 2026US 12,747,552 B2
- Path or road barrier for vehicles3 Mar 2026US 12,565,749 B2PeriGuard GmbH
- Dissecting barrier16 Sep 2025US 12,416,124 B2
- Method for actuating a barrier1 Apr 2025US 12,264,445 B2Delta Scientific Corporation
- Method for actuating a barrier7 May 2024US 11,976,428 B2Delta Scientific Corporation
- Wedge Vehicle Barrier13 Aug 2026US 2026/0234879 A1Neusch Innovations, LP
- Tire deflation assembly2 Apr 2026US 2026/0092420 A1
- Bollard drive for a blocking bollard, and blocking bollard3 Apr 2025US 2025/0109557 A1Elka Torantriebe GmbH U. Co. Betriebs KG
- Method for actuating a barrier11 Jul 2024US 2024/0229384 A1Delta Scientific Corporation
- Method for actuating a barrier9 Nov 2023US 2023/0358003 A1Delta Scientific Corporation
Most cited
By later US patents
- Vehicle security gate apparatus and method of operating same55US 5,975,791 A1999
- Motorized tire barrier and signal barrier traffic-way controller49US 4,318,079 A1982
- Ground retractable automobile barrier49US 5,762,443 AUniversal Safety Response, Inc. · 1998
- Energy absorbing system48US 6,843,613 B2Universal Safety Response, Inc. · 2005
- Vehicle arresting installation42US 6,702,512 B12004