E01F 7/00
Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or
Official title: Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks (permanently installed heating or blowing devices for roads E01C11/26); Anti-dazzle arrangements {; Sight-screens for roads, e.g. to mask accident site (E01F8/00 takes precedence)}
E01F7/00 (Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or) appears on 229 US grants and 223 published applications in this corpus.
Search patents in E01F- Granted patents
- 229
- Published applications
- 223
- Assignees
- 136
- Inventors
- 461
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 12 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 1 |
| 2002 | 6 | 4 |
| 2003 | 1 | 0 |
| 2004 | 2 | 4 |
| 2005 | 6 | 10 |
| 2006 | 8 | 12 |
| 2007 | 5 | 12 |
| 2008 | 5 | 10 |
| 2009 | 3 | 7 |
| 2010 | 5 | 4 |
| 2011 | 2 | 8 |
| 2012 | 3 | 5 |
| 2013 | 2 | 6 |
| 2014 | 7 | 9 |
| 2015 | 8 | 14 |
| 2016 | 8 | 10 |
| 2017 | 4 | 6 |
| 2018 | 9 | 11 |
| 2019 | 5 | 15 |
| 2020 | 7 | 16 |
| 2021 | 11 | 10 |
| 2022 | 12 | 16 |
| 2023 | 3 | 9 |
| 2024 | 14 | 14 |
| 2025 | 11 | 6 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sensor-fitted metal net15 Sep 2026US 12,734,575 B2Officine Maccaferri S.P.A.
- Avalanche triggering apparatus15 Sep 2026US 12,736,318 B2
- Protection structure and metal protection net for such a protection structure1 Sep 2026US 12,723,359 B2Officine Maccaferri S.P.A.
- Mobile spread-out separating and protecting barrier3 Mar 2026US 12,565,746 B2
- Heavy duty silt fence using nonwoven silt retention fabric10 Feb 2026US 12,546,083 B2Mazcon, A Kurtz Bros. Company, LLC
- Avalanche triggering apparatus23 Jul 2026US 2026/0210685 A1Alpine Infrastructure Inc.
- Method and devices for diverting lava flows4 Jun 2026US 2026/0152914 A1Adg IngenieríA AutomáTica, Sl
- Screen for shielding an area of operation9 Apr 2026US 2026/0098388 A1
- Avalanche triggering system19 Feb 2026US 2026/0049801 A1Avenir Protections
- Fence system and method of use16 Oct 2025US 2025/0320673 A1Sox, LLC
Most cited
By later US patents
- Construction units for the erection of walls and method of utilization136US 4,524,551 A1985
- Silt fence60US 5,758,868 ASiltco Industries Inc. · 1998
- Environment control barrier and apparatus and method for the installation of the barrier59US 5,039,250 A1991
- Safety net system for debris and mud slides54US 5,961,099 ABrugg Cable Products, Inc. · 1999
- View shield device53US 6,733,204 B12004