E01F 7/02
Snow fences or similar devices
Official title: Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects (fences in general E04H17/00)
E01F7/02 (Snow fences or similar devices) appears on 70 US grants and 64 published applications in this corpus.
Search patents in E01F- Granted patents
- 70
- Published applications
- 64
- Assignees
- 44
- Inventors
- 138
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 4 | 5 |
| 2007 | 1 | 5 |
| 2008 | 1 | 4 |
| 2009 | 2 | 4 |
| 2010 | 5 | 1 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 8 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 2 | 1 |
| 2019 | 2 | 4 |
| 2020 | 0 | 3 |
| 2021 | 3 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 3 |
| 2024 | 3 | 3 |
| 2025 | 3 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heavy duty silt fence using nonwoven silt retention fabric10 Feb 2026US 12,546,083 B2Mazcon, A Kurtz Bros. Company, LLC
- Airport for vertical take-off and landing aircraft3 Feb 2026US 12,539,987 B2Hitachi, Ltd.
- Silt fence configured for capturing pollutants and fabric forming the same5 Aug 2025US 12,378,736 B2Huesker, Inc.
- Geomaterial web with biological degradation properties27 May 2025US 12,311,649 B2Naue GmbH & Co. KG
- Fence system and method of use18 Mar 2025US 12,252,852 B2Sox, LLC
- Fence system and method of use16 Oct 2025US 2025/0320673 A1Sox, LLC
- Airport for vertical take-off and landing aircraft12 Jun 2025US 2025/0187761 A1Hitachi, Ltd.
- Silt Fence Configured for Capturing Pollutants and Fabric Forming the Same26 Sep 2024US 2024/0318390 A1Huesker, Inc.
- Fence system and method of use18 Jul 2024US 2024/0240417 A1Sox, LLC
- Foldable windproof unit, large-span windproof net structure thereof and windproof method28 Mar 2024US 2024/0102256 A1Shijiazhuang Tiedao University
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
- Formation of barriers34US 4,188,153 A1980
- Silt fence33US 4,756,511 ACertified Stake Co., Inc. · 1988