A01D 21/00
Digging machines with potato-picking implements
A01D21/00 (Digging machines with potato-picking implements) appears on 8 US grants and 2 published applications in this corpus.
Search patents in A01D- Granted patents
- 8
- Published applications
- 2
- Assignees
- 5
- Inventors
- 16
- Latest grant
- 3 Jul 2001
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 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 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Finger rollers for agricultural implements3 Jul 2001US 6,253,535 B1ARTEMIS Kautschuk- und Kunststofftechnik GmbH & Cie
- Assembly line potato harvester20 Nov 1990US 4,971,155 A
- Root crop harvester24 Dec 1985US 4,560,008 ANational Research Development Corporation
- Machine for pulling endives and other tap roots26 May 1981US 4,269,272 A
- Potato harvester24 Oct 1978US 4,121,667 A
Most cited
By later US patents
- Root crop harvester22US 4,560,008 ANational Research Development Corporation · 1985
- Green onion harvester19US 3,989,110 A1976
- Potato harvester7US 4,121,667 A1978
- Finger rollers for agricultural implements7US 6,253,535 B1ARTEMIS Kautschuk- und Kunststofftechnik GmbH & Cie · 2001
- Assembly line potato harvester5US 4,971,155 A1990