A01B 33/028
Of the walk-behind type
Official title: {of the walk-behind type (walk-type tractors B62D51/04)}
A01B33/028 (Of the walk-behind type) appears on 122 US grants and 103 published applications in this corpus.
Search patents in A01B- Granted patents
- 122
- Published applications
- 103
- Assignees
- 46
- Inventors
- 220
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 3 | 6 |
| 2004 | 2 | 8 |
| 2005 | 7 | 2 |
| 2006 | 3 | 3 |
| 2007 | 2 | 3 |
| 2008 | 1 | 2 |
| 2009 | 2 | 6 |
| 2010 | 3 | 8 |
| 2011 | 7 | 7 |
| 2012 | 7 | 4 |
| 2013 | 8 | 7 |
| 2014 | 3 | 5 |
| 2015 | 2 | 4 |
| 2016 | 2 | 6 |
| 2017 | 8 | 12 |
| 2018 | 5 | 4 |
| 2019 | 4 | 1 |
| 2020 | 5 | 1 |
| 2021 | 2 | 3 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 5 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wheel assembly for a unitractor and a unitractor comprising said wheel assembly16 Jun 2026US 12,654,787 B2Punda AS
- Ground treatment device6 May 2025US 12,290,012 B2Subversive Tools Inc.
- Dual-direction tiller/cultivator1 Oct 2024US 12,102,022 B2Ardisam, Inc.
- Garden tiller utilizing an impact motor21 Nov 2023US 11,818,973 B1
- Drum style rotary tiller17 May 2022US 11,330,753 B2Ardisam, Inc.
- Tiller16 Jul 2026US 2026/0198396 A1Greenworks (Jiangsu) Co., Ltd.
- Cultivator17 Jul 2025US 2025/0228149 A1Subversive Tools Inc.
- Dual-direction tiller/cultivator27 Feb 2025US 2025/0063967 A1Ardisam, Inc.
- Rear tine tiller21 Nov 2024US 2024/0381801 A1Techtronic Cordless GP
- Single-axis agricultural machine with continuous speed variation and independent power take-off7 Nov 2024US 2024/0367510 A1
Most cited
By later US patents
- Universal, retrofittable powerhead for small gasoline engine power implements55US 5,787,693 ABlack & Decker Inc. · 1998
- Cylindrical drum tiller attachment50US 4,192,387 A1980
- Garden cultivator with reversing operation activated by vertical engine movement and with freely rotatable cultivator cylinder49US 4,321,969 A1982
- Horticultural device38US 4,002,205 A1977
- Electric garden tiller34US 7,237,620 B2Desa IP, LLC · 2007