A01D 34/412
Having rotating cutters
Official title: having rotating cutters
A01D34/412 (Having rotating cutters) appears on 5,388 US grants and 4,433 published applications in this corpus.
Search patents in A01D- Granted patents
- 5,388
- Published applications
- 4,433
- Assignees
- 934
- Inventors
- 6,691
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 47 | 0 |
| 1977 | 72 | 0 |
| 1978 | 74 | 0 |
| 1979 | 66 | 0 |
| 1980 | 90 | 0 |
| 1981 | 97 | 0 |
| 1982 | 80 | 0 |
| 1983 | 41 | 0 |
| 1984 | 58 | 0 |
| 1985 | 65 | 0 |
| 1986 | 57 | 0 |
| 1987 | 79 | 0 |
| 1988 | 72 | 0 |
| 1989 | 99 | 0 |
| 1990 | 98 | 0 |
| 1991 | 96 | 0 |
| 1992 | 77 | 0 |
| 1993 | 81 | 0 |
| 1994 | 78 | 0 |
| 1995 | 78 | 0 |
| 1996 | 68 | 0 |
| 1997 | 54 | 0 |
| 1998 | 106 | 0 |
| 1999 | 94 | 0 |
| 2000 | 102 | 0 |
| 2001 | 83 | 25 |
| 2002 | 93 | 101 |
| 2003 | 96 | 114 |
| 2004 | 89 | 94 |
| 2005 | 80 | 112 |
| 2006 | 75 | 109 |
| 2007 | 62 | 117 |
| 2008 | 79 | 120 |
| 2009 | 93 | 129 |
| 2010 | 101 | 104 |
| 2011 | 96 | 109 |
| 2012 | 90 | 110 |
| 2013 | 81 | 107 |
| 2014 | 93 | 163 |
| 2015 | 96 | 160 |
| 2016 | 125 | 187 |
| 2017 | 181 | 212 |
| 2018 | 143 | 232 |
| 2019 | 180 | 265 |
| 2020 | 222 | 302 |
| 2021 | 214 | 285 |
| 2022 | 209 | 261 |
| 2023 | 216 | 257 |
| 2024 | 206 | 296 |
| 2025 | 244 | 254 |
| 2026 | 212 | 208 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flexible rotary cutting device and method6 Oct 2026US 12,751,354 B2
- Mower deck drag link6 Oct 2026US 12,751,355 B2Deere & Company
- Compact stand on mower deck belt system6 Oct 2026US 12,751,356 B2Deere & Company
- Mower and height adjustment method of mower6 Oct 2026US 12,751,357 B2Greenworks (Jiangsu) Co., Ltd.
- Electric riding mower with grass collecting duct6 Oct 2026US 12,751,367 B2Nanjing Chervon Industry Co., Ltd.
- Robotic lawn mower8 Oct 2026US 2026/0305527 A1Nexlawn Intelligent Technology
- Mower deck with torque monitoring8 Oct 2026US 2026/0305528 A1The Toro Company
- Windrow sensing attachment for a mower implement8 Oct 2026US 2026/0305529 A1Deere & Company
- Lawn mower8 Oct 2026US 2026/0305530 A1Nexlawn Intelligent Technology (Suzhou) Co., Ltd.
- Processor control over the state (position, attitude or degree of openness) of discharge gates for mowers1 Oct 2026US 2026/0293798 A1
Most cited
By later US patents
- Lawn mower riding sulky210US 5,947,505 A1999
- Electric riding lawn mower powered by an internal combustion engine and generator system156US 6,591,593 B12003
- Electric drive riding greens mower142US 5,406,778 ARansomes America Corporation · 1995
- Power mower with riding platform for supporting standing operator128US 5,809,755 AWright Manufacturing, Inc. · 1998
- Electric drive mower with motor generator set123US 5,794,422 ARansomes America Corporation · 1998