E01F
Additional work, such as equipping roads or the construction of platforms, helicopter
Official title: Additional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like
E01F (Additional work, such as equipping roads or the construction of platforms, helicopter) appears on 5,801 US grants and 4,624 published applications in this corpus.
Search patents in E01F- Granted patents
- 5,801
- Published applications
- 4,624
- Assignees
- 2,328
- Inventors
- 8,346
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 71 | 0 |
| 1977 | 56 | 0 |
| 1978 | 72 | 0 |
| 1979 | 37 | 0 |
| 1980 | 59 | 0 |
| 1981 | 60 | 0 |
| 1982 | 52 | 0 |
| 1983 | 37 | 0 |
| 1984 | 47 | 0 |
| 1985 | 53 | 0 |
| 1986 | 71 | 0 |
| 1987 | 94 | 0 |
| 1988 | 64 | 0 |
| 1989 | 93 | 0 |
| 1990 | 84 | 0 |
| 1991 | 114 | 0 |
| 1992 | 97 | 0 |
| 1993 | 111 | 0 |
| 1994 | 108 | 0 |
| 1995 | 139 | 0 |
| 1996 | 131 | 0 |
| 1997 | 115 | 0 |
| 1998 | 140 | 0 |
| 1999 | 132 | 0 |
| 2000 | 147 | 0 |
| 2001 | 143 | 42 |
| 2002 | 148 | 139 |
| 2003 | 131 | 137 |
| 2004 | 114 | 167 |
| 2005 | 113 | 188 |
| 2006 | 120 | 234 |
| 2007 | 95 | 179 |
| 2008 | 88 | 174 |
| 2009 | 115 | 166 |
| 2010 | 145 | 171 |
| 2011 | 118 | 148 |
| 2012 | 118 | 139 |
| 2013 | 129 | 162 |
| 2014 | 127 | 195 |
| 2015 | 140 | 172 |
| 2016 | 152 | 189 |
| 2017 | 167 | 190 |
| 2018 | 142 | 203 |
| 2019 | 183 | 239 |
| 2020 | 168 | 238 |
| 2021 | 160 | 228 |
| 2022 | 182 | 239 |
| 2023 | 161 | 217 |
| 2024 | 181 | 184 |
| 2025 | 167 | 170 |
| 2026 | 110 | 114 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- E01F 9/00Arrangement of road signs or traffic signals2,824
- E01F 13/00Arrangements for obstructing or restricting traffic1,386
- E01F 15/00Safety arrangements for slowing, redirecting or stopping errant vehicles1,365
- E01F 8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic398
- E01F 7/00Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or229
- E01F 5/00Draining the sub-base , i.e. subgrade or ground-work167
- E01F 11/00Road engineering aspects of embedding pads or other sensitive devices in paving82
- E01F 3/00Landing stages for helicopters55
All 9 main groupsShow fewer
Recent patents
- Roadway safety device6 Oct 2026US 12,753,557 B2Argo Corp, Inc.
- Barrier post with safety means6 Oct 2026US 12,753,558 B2Ans Development Co.,Ltd.
- System and method for decoding information6 Oct 2026US 12,755,116 B2TORC Robotics, Inc.
- Robotic maintenance vehicle and modules29 Sep 2026US 12,747,551 B2Rmv Leasing LLC
- Tire spiker with extendable handle29 Sep 2026US 12,747,552 B2
- Monitoring and control of traffic control devices in work zones8 Oct 2026US 2026/0308857 A1
- Base member for a bollard1 Oct 2026US 2026/0297871 A1Atg Access Ltd.
- Bollard1 Oct 2026US 2026/0297872 A1Atg Access Ltd.
- Modular barrier1 Oct 2026US 2026/0297873 A1Atg Access Ltd.
- Torque-Limiting Coupling System for Use in Breakaway Mounting Systems for Roadway Signposts and Methods of Use1 Oct 2026US 2026/0298294 A1
Most cited
By later US patents