A01D 34/828
Safety devices
Official title: {Safety devices}
A01D34/828 (Safety devices) appears on 308 US grants and 330 published applications in this corpus.
Search patents in A01D- Granted patents
- 308
- Published applications
- 330
- Assignees
- 119
- Inventors
- 699
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 2 |
| 2003 | 4 | 7 |
| 2004 | 5 | 7 |
| 2005 | 2 | 4 |
| 2006 | 5 | 6 |
| 2007 | 8 | 7 |
| 2008 | 4 | 5 |
| 2009 | 7 | 7 |
| 2010 | 3 | 7 |
| 2011 | 5 | 7 |
| 2012 | 6 | 9 |
| 2013 | 5 | 11 |
| 2014 | 7 | 6 |
| 2015 | 5 | 8 |
| 2016 | 8 | 17 |
| 2017 | 17 | 21 |
| 2018 | 12 | 21 |
| 2019 | 14 | 20 |
| 2020 | 20 | 22 |
| 2021 | 15 | 24 |
| 2022 | 11 | 24 |
| 2023 | 19 | 27 |
| 2024 | 20 | 27 |
| 2025 | 19 | 21 |
| 2026 | 17 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Garden tool and push rod mechanism4 Aug 2026US 12,696,835 B2Jiangsu Dongcheng Tools Technology Co., Ltd.
- Lift detection mechanism of mowing robot30 Jun 2026US 12,667,048 B2Durq Machinery Corp.
- Electric motor with integrated self-supporting spindle for a mower16 Jun 2026US 12,653,095 B1Parker-Hannifin Corporation
- Trimmer head9 Jun 2026US 12,648,518 B2T&I Consulting AB
- Skid plate19 May 2026US 12,628,736 B2Husqvarna AB
- Working machine24 Sep 2026US 2026/0283069 A1Honda Motor Co., Ltd.
- Skid plate17 Sep 2026US 2026/0271829 A1Husqvarna AB
- Brush cutter and method of use30 Jul 2026US 2026/0215364 A1Venture Products, Inc.
- Outdoor power equipment safety device16 Jul 2026US 2026/0198419 A1Black & Decker Inc.
- Methods and control systems for calculating a size of a predefined area25 Jun 2026US 2026/0174006 A1Greenworks (Jiangsu) Co., Ltd.
Most cited
By later US patents
- Non-contact switch for detecting the presence of operator on power machinery114US 5,397,890 A1995
- Battery-powered lawn cutting system97US 5,606,851 ABriggs & Stratton Corporation · 1997
- Electro-mechanical interlock and module system for lawn mower or other electrical device84US 5,085,043 ABlack & Decker Inc. · 1992
- Electric lawn mower78US 6,826,895 B2Honda Giken Kogyo Kabushiki Kaisha · 2004
- Lawn mower activation switch69US 5,203,147 ARyobi Motor Products Corp. · 1993