E01F 13/044
The barrier being formed by obstructing members situated on, flush with, or
Official title: {the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface (E01F13/08, E01F13/10 take precedence; retractable speed humps E01F9/529)}
E01F13/044 (The barrier being formed by obstructing members situated on, flush with, or) appears on 112 US grants and 91 published applications in this corpus.
Search patents in E01F- Granted patents
- 112
- Published applications
- 91
- Assignees
- 59
- Inventors
- 198
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 4 |
| 2006 | 6 | 5 |
| 2007 | 1 | 6 |
| 2008 | 5 | 5 |
| 2009 | 1 | 3 |
| 2010 | 3 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 2 |
| 2014 | 3 | 5 |
| 2015 | 5 | 4 |
| 2016 | 4 | 6 |
| 2017 | 5 | 6 |
| 2018 | 3 | 5 |
| 2019 | 5 | 6 |
| 2020 | 3 | 3 |
| 2021 | 4 | 4 |
| 2022 | 2 | 6 |
| 2023 | 3 | 1 |
| 2024 | 4 | 4 |
| 2025 | 5 | 5 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mobile barrier15 Sep 2026US 12,735,851 B1
- Collapsible barrier and a system comprising the same25 Nov 2025US 12,480,268 B2
- Gate beam16 Sep 2025US D1,093,658 S1Design
- Counterweight deployable vehicle barrier27 May 2025US 12,312,754 B2
- Roadblock for temporary installation to block traffic and/or as a security precaution13 May 2025US 12,297,610 B2Road Solutions, Inc.
- Retractable bollard light4 Dec 2025US 2025/0369201 A1Artled Technology Corp.
- Crosswalk safety system22 May 2025US 2025/0166505 A1BASE AND POWER CITY Corp.
- Smart buoy system with function of preventing risks due to urban flooding15 May 2025US 2025/0153814 A1Chungho Solution Co., Ltd.
- Blocking bollard comprising a warning device, and method for actuating a blocking bollard10 Apr 2025US 2025/0116079 A1Elka Torantriebe GmbH U. Co. Betriebs KG
- Bollard drive for a blocking bollard, and blocking bollard3 Apr 2025US 2025/0109557 A1Elka Torantriebe GmbH U. Co. Betriebs KG
Most cited
By later US patents
- Bollard trafficway barrier and vehicle arrest system75US 4,576,508 A1986
- Manually depressible automatically deployable spring balanced bollard60US 4,715,742 A1987
- Vehicle parking or passageway security barrier59US 4,919,563 A1990
- Terrorist vehicle barrier51US 4,576,507 A1986
- Methods and apparatus for quickly erecting a vehicle barrier across a roadway51US 4,824,282 A1989