A01D 34/135
Having oppositely movable cooperating knife-bars
Official title: having oppositely movable cooperating knife-bars
A01D34/135 (Having oppositely movable cooperating knife-bars) appears on 36 US grants and 35 published applications in this corpus.
Search patents in A01D- Granted patents
- 36
- Published applications
- 35
- Assignees
- 20
- Inventors
- 70
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 3 |
| 2017 | 2 | 1 |
| 2018 | 0 | 2 |
| 2019 | 4 | 4 |
| 2020 | 3 | 4 |
| 2021 | 3 | 3 |
| 2022 | 4 | 6 |
| 2023 | 1 | 2 |
| 2024 | 3 | 3 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cutting unit with double knife system and movable sliding surface16 Jun 2026US 12,653,093 B2Carl Geringhoff GmbH & Co. Kommanditgesellschaft
- Reciprocating cutting blade apparatus and brush cutter8 Apr 2025US 12,268,132 B2Yamabiko Corporation
- Crop divider structure for cutting system18 Feb 2025US 12,225,844 B2Honey Bee Manufacturing Ltd.
- Bar rail for side cutting unit21 Jan 2025US 12,201,056 B2CLAAS Selbstfahrende Erntemaschinen GmbH
- Reciprocating cutting blade apparatus22 Oct 2024US 12,120,993 B2Yamabiko Corporation
- Robot and grass mowing and collecting device9 Jul 2026US 2026/0191132 A1Suzhou Laimou Technology Co., Ltd.
- Header cutting system with knife guards17 Apr 2025US 2025/0120338 A1Honey Bee Manufacturing Ltd.
- Agricultural Header with Double Knife Cutting System7 Nov 2024US 2024/0365703 A1AGCO International GmbH
- Mower knife device23 May 2024US 2024/0164251 A1Wepfer Technics AG
- Mower Knife Device29 Feb 2024US 2024/0065145 A1Wepfer Technics AG
Most cited
By later US patents
- Reciprocating cutting tool834US 9,820,445 B2Robert Bosch GmbH · 2017
- Sickle knife with double overlapping out of phase sickles50US 6,962,040 B2MacDon Industries Ltd. · 2005
- Knife guard construction for sickle knife41US 7,328,565 B2MacDon Industries Ltd. · 2008
- Mower with two sickle bars39US 4,660,361 AMacDon Industries Ltd. · 1987
- Double sickle mechanism34US 4,246,742 AHesston Corporation · 1981