B24B 3/55
Sharpening cutting edges: of knife bars for harvesting machines
Official title: of knife bars for harvesting machines
B24B3/55 (Sharpening cutting edges: of knife bars for harvesting machines) appears on 9 US grants and 2 published applications in this corpus.
Search patents in B24B- Granted patents
- 9
- Published applications
- 2
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 1 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Grinding device and grinding method wherein a grinding unit can operate on-board as well as off-board1 Mar 2022US 11,259,469 B2Forage Company B.V.
- Method for determining the sharpness of cutting edges of chopper blades31 Oct 2017US 9,801,342 B2CLAAS Saulgau GmbH
- Method for sharpening bedknives13 Apr 1999US 5,893,792 A
- Sharpening apparatus for forage harvester knives22 Dec 1992US 5,172,521 AFord New Holland, Inc.
- Method and apparatus for maintaining cylindrical profile of forage harvester cutterheads14 Apr 1992US 5,103,622 AFord New Holland, Inc.
Most cited
By later US patents
- Automatic knife sharpening method for forage harvesters6US 4,991,476 AFord New Holland, Inc. · 1991
- Method for sharpening bedknives6US 5,893,792 A1999
- Method and apparatus for maintaining cylindrical profile of forage harvester cutterheads3US 5,103,622 AFord New Holland, Inc. · 1992
- Sharpening apparatus for forage harvester knives3US 5,172,521 AFord New Holland, Inc. · 1992
- Cooling and lubricating device for sharpening feed chopping knives2US 4,607,462 A1986