A01D 34/685
With two or more cutters
Official title: with two or more cutters
A01D34/685 (With two or more cutters) appears on 62 US grants and 60 published applications in this corpus.
Search patents in A01D- Granted patents
- 62
- Published applications
- 60
- Assignees
- 39
- Inventors
- 157
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 3 | 3 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 1 |
| 2018 | 2 | 3 |
| 2019 | 0 | 3 |
| 2020 | 1 | 0 |
| 2021 | 4 | 9 |
| 2022 | 1 | 6 |
| 2023 | 2 | 4 |
| 2024 | 4 | 8 |
| 2025 | 2 | 9 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Walk-behind mower1 Sep 2026US 12,721,260 B2Greenworks (Jiangsu) Co., Ltd.
- Outdoor work tool25 Aug 2026US 12,714,020 B2Greenworks (Jiangsu) Co., Ltd.
- Blade system and mower for use therewith2 Dec 2025US 12,484,477 B2
- Dual blade assembly for a lawn mower9 Sep 2025US 12,408,584 B2Nanjing Chervon Industry Co., Ltd.
- Blade assembly for a lawn mower23 Jul 2024US 12,041,874 B2Nanjing Chervon Industry Co., Ltd.
- Walk-behind working machine20 Aug 2026US 2026/0240071 A1Nanjing Chervon Industry Co., Ltd.
- Working implement quick release system, method, and associated power tools7 May 2026US 2026/0123575 A1Techtronic Cordless GP
- Working Machine2 Apr 2026US 2026/0090496 A1Yamabiko Corporation
- Mower30 Oct 2025US 2025/0331453 A1Nanjing Chervon Industry Co., Ltd.
- Mower17 Jul 2025US 2025/0228157 A1Nanjing Chervon Industry Co., Ltd.
Most cited
By later US patents
- Lawnmower cutting deck and releasable blade64US 8,136,333 B1F Robotics Acquisitions Ltd. · 2012
- Lawn mower56US 5,251,429 AHonda Giken Kogyo Kabushiki Kaisha · 1993
- Lawnmower deck53US 4,226,074 AExcel Industries, Inc. · 1980
- Multi-bladed mulching/bagging mower50US 5,205,112 AThe Toro Company · 1993
- Multi-bladed mulching mower49US 5,133,176 AThe Toro Company · 1992