A01D 34/4163
By triggered line feedout
Official title: {by triggered line feedout, e.g. bump-feeding}
A01D34/4163 (By triggered line feedout) appears on 144 US grants and 144 published applications in this corpus.
Search patents in A01D- Granted patents
- 144
- Published applications
- 144
- Assignees
- 51
- Inventors
- 183
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 2 |
| 2004 | 2 | 2 |
| 2005 | 4 | 5 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 13 |
| 2009 | 3 | 3 |
| 2010 | 3 | 3 |
| 2011 | 4 | 7 |
| 2012 | 1 | 3 |
| 2013 | 5 | 3 |
| 2014 | 6 | 2 |
| 2015 | 0 | 9 |
| 2016 | 2 | 6 |
| 2017 | 1 | 11 |
| 2018 | 7 | 13 |
| 2019 | 7 | 7 |
| 2020 | 6 | 7 |
| 2021 | 6 | 11 |
| 2022 | 7 | 4 |
| 2023 | 5 | 9 |
| 2024 | 5 | 3 |
| 2025 | 7 | 6 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Weed whacker attachment and cutting string dispensing mechanism8 Sep 2026US 12,727,540 B2
- Head for brush cutters28 Jul 2026US 12,690,516 B2Tecomec S.R.L.
- String trimmer head24 Mar 2026US 12,582,029 B2Milwaukee Electric Tool Corporation
- Grass trimmer24 Feb 2026US 12,557,730 B2Chervon (HK) Limited
- Power tool and compact power feed trimmer head27 Jan 2026US 12,532,806 B2Techtronic Cordless GP
- Grass trimmer13 Aug 2026US 2026/0231857 A1Nanjing Chervon Industry Co., Ltd.
- Grass trimming head and grass trimmer having the same30 Jul 2026US 2026/0215362 A1Nanjing Chervon Industry Co., Ltd.
- Grass trimmer23 Jul 2026US 2026/0206680 A1Chervon (HK) Limited
- Line winder for line trimmers9 Jul 2026US 2026/0191133 A1
- String trimmer head and spool30 Apr 2026US 2026/0114365 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Filament trimmer head91US 5,749,148 AThe Toro Company · 1998
- Flail feedout mechanism for a rotary mower61US 4,259,782 A1981
- Cutting head for nylon-cord type mowers57US 5,765,287 AActive s.r.l. · 1998
- Flail feedout mechanism for a rotary mower56US 4,203,212 A1980
- Apparatus for cutting vegetation51US 4,161,820 AWeed Eater, Inc. · 1979