E01H 4/02
Working on surfaces of snow or ice in order to make them
Official title: for sporting purposes, e.g. preparation of ski trails; {Construction of artificial surfacings for snow or ice sports (construction of ice skating rinks E01C13/102); Trails specially adapted for on-the-snow vehicles}, e.g. devices adapted for ski-trails (production of snow or ice for winter sports or similar recreational purposes F25C3/00)
E01H4/02 (Working on surfaces of snow or ice in order to make them) appears on 201 US grants and 164 published applications in this corpus.
Search patents in E01H- Granted patents
- 201
- Published applications
- 164
- Assignees
- 67
- Inventors
- 251
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 0 | 1 |
| 2002 | 7 | 7 |
| 2003 | 2 | 10 |
| 2004 | 6 | 5 |
| 2005 | 4 | 2 |
| 2006 | 3 | 5 |
| 2007 | 2 | 10 |
| 2008 | 3 | 3 |
| 2009 | 3 | 4 |
| 2010 | 4 | 6 |
| 2011 | 1 | 13 |
| 2012 | 4 | 5 |
| 2013 | 6 | 4 |
| 2014 | 9 | 3 |
| 2015 | 2 | 1 |
| 2016 | 4 | 4 |
| 2017 | 0 | 7 |
| 2018 | 5 | 4 |
| 2019 | 4 | 9 |
| 2020 | 8 | 9 |
| 2021 | 4 | 3 |
| 2022 | 6 | 9 |
| 2023 | 4 | 13 |
| 2024 | 4 | 7 |
| 2025 | 12 | 7 |
| 2026 | 9 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Crawler vehicle and method for managing the operation of said crawler vehicle11 Aug 2026US 12,703,263 B2Prinoth S.P.A.
- Snowgroomer and method for controlling a snowgroomer30 Jun 2026US 12,668,937 B2Prinoth S.P.A.
- Ice edger brush apparatus23 Jun 2026US 12,662,784 B2
- Piste grooming vehicle2 Jun 2026US 12,644,241 B2KäSsbohrer GeläNdefahrzeug AG
- Tracked vehicle, monitoring and/or control and/or management system of tracked vehicle and related method2 Jun 2026US 12,646,362 B2Prinoth S.P.A.
- Thermal insulation cover, thermal insulation system and method of thermally insulating a pile of snow or glacier30 Jul 2026US 2026/0218838 A1Snow Secure Oy
- Snow blade for preparing ski slopes and its operating method23 Jul 2026US 2026/0210066 A1
- Crawler vehicle4 Jun 2026US 2026/0152062 A1
- Crawler vehicle and control method to control said crawler vehicle4 Jun 2026US 2026/0152063 A1
- Crawler vehicle4 Jun 2026US 2026/0152911 A1
Most cited
By later US patents
- Foldable snow compactor with side wings pivotable behind central blade57US 4,479,312 AValley Engineering, Inc. · 1984
- Apparatus for compacting snow for skiing54US 4,019,268 AValley Engineering, Inc. · 1977
- Snow groomers and control system therefor43US 6,354,023 B1Bombardier Inc. · 2002
- Packer bar assembly36US 4,651,450 AFallLine Corporation · 1987
- Ice edger for ice resurfacing machine32US 4,372,617 AFrank J. Zamboni & Co. · 1983