E01H 5/09
The elements being rotary or moving along a closed circular path
Official title: the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
E01H5/09 (The elements being rotary or moving along a closed circular path) appears on 330 US grants and 363 published applications in this corpus.
Search patents in E01H- Granted patents
- 330
- Published applications
- 363
- Assignees
- 127
- Inventors
- 651
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 2 |
| 2002 | 5 | 3 |
| 2003 | 5 | 4 |
| 2004 | 3 | 6 |
| 2005 | 4 | 3 |
| 2006 | 2 | 5 |
| 2007 | 2 | 3 |
| 2008 | 0 | 2 |
| 2009 | 2 | 3 |
| 2010 | 3 | 3 |
| 2011 | 2 | 5 |
| 2012 | 2 | 7 |
| 2013 | 6 | 10 |
| 2014 | 4 | 16 |
| 2015 | 10 | 31 |
| 2016 | 23 | 20 |
| 2017 | 20 | 26 |
| 2018 | 20 | 21 |
| 2019 | 24 | 32 |
| 2020 | 16 | 30 |
| 2021 | 18 | 21 |
| 2022 | 13 | 21 |
| 2023 | 14 | 13 |
| 2024 | 19 | 33 |
| 2025 | 15 | 25 |
| 2026 | 17 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Single-switch snow thrower and power tools including methods of operation6 Oct 2026US 12,753,560 B2Techtronic Cordless GP
- Wireless charging base and charging system of automatic snow sweeping equipment6 Oct 2026US 12,756,233 B2Shenzhen Hanyang Technology Co., Ltd.
- Chute rotation control system for snow thrower29 Sep 2026US 12,747,553 B2MTD Products Inc
- Snow thrower and steering method thereof25 Aug 2026US 12,716,183 B2Greenworks (Jiangsu) Co., Ltd.
- High efficiency and high performance multi-stage snow thrower21 Jul 2026US 12,686,981 B2MTD Products Inc
- Antenna pole, positioning system, and yard working system10 Sep 2026US 2026/0269454 A1Shenzhen Hanyang Technology Co., Ltd.
- Power tools with presence detection27 Aug 2026US 2026/0250921 A1Techtronic Cordless GP
- A self-propelled device, working robot and charging system20 Aug 2026US 2026/0241821 A1Shenzhen Hanyang Technology Co., Ltd.
- Priority region cleaning method and device, cleaning machine, and storage medium20 Aug 2026US 2026/0244217 A1Shenzhen Hanyang Technology Co., Ltd.
- Snow removal device and snow removal equipment6 Aug 2026US 2026/0226695 A1Shenzhen Hanyang Technology Co., Ltd.
Most cited
By later US patents
- Snow blower augers and impellers68US 5,209,003 AOshkosh Truck Corporation · 1993
- Control system and method for a snow removal vehicle64US 6,266,598 B1Oshkosh Truck Corporation · 2001
- Single stage snowthrower61US 4,694,594 AThe Toro Company · 1987
- Snow blower apparatus48US 7,540,102 B2Wisconsin Engineering, CZ s.r.o. · 2009
- Single stage snowthrower impeller43US 5,398,431 AThe Toro Company · 1995