A01F 12/442
Rotary cleaners
Official title: {Rotary cleaners}
A01F12/442 (Rotary cleaners) appears on 108 US grants and 55 published applications in this corpus.
Search patents in A01F- Granted patents
- 108
- Published applications
- 55
- Assignees
- 35
- Inventors
- 172
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 6 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 2 | 2 |
| 2016 | 1 | 3 |
| 2017 | 2 | 1 |
| 2018 | 2 | 1 |
| 2019 | 4 | 8 |
| 2020 | 4 | 6 |
| 2021 | 2 | 4 |
| 2022 | 4 | 6 |
| 2023 | 2 | 3 |
| 2024 | 5 | 6 |
| 2025 | 6 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Peeling, screening and cleaning device for Torreya grandis ‘Merrillii’s14 Jul 2026US 12,677,749 B2Anhui Agricultural University
- Threshing and separation method to separate grains from material other than grain via threshing and separating apparatuses8 Jul 2025US 12,349,632 B2Calmer Holding Company, LLC
- Brush system for a threshing and separating system of an agricultural harvester3 Jun 2025US 12,317,780 B2CNH Industrial America LLC
- Threshing beds and concave for an agricultural combine formed therewith20 May 2025US 12,302,795 B2
- Control of residue spread pattern by continuously varying distribution frequency25 Feb 2025US 12,232,452 B2CNH Industrial America LLC
- Grain Cleaning Apparatus for a Combine Harvester10 Sep 2026US 2026/0262574 A1
- Peeling, screening and cleaning device for torreya grandis 'merrillii's17 Jul 2025US 2025/0228163 A1Anhui Agricultural University
- Threshing beds and concave for an agricultural combine formed therewith8 May 2025US 2025/0143223 A1
- Combine with threshing chamber defined by distinct sequences of concaves1 May 2025US 2025/0134001 A1Calmer Holding Company, LLC
- Grain Processing Apparatus of a Combine Harvester12 Dec 2024US 2024/0407297 A1AGCO Corporation
Most cited
By later US patents
- Separating grate for a grain harvester64US 4,875,891 ADeere & Company · 1989
- Removable concaves for axial flow combines43US 6,485,364 B1New Holland North America, Inc. · 2002
- Grain separating apparatus including step-like webs39US 6,537,148 B2CLAAS Selbstfahrende Erntemaschinen GmbH · 2003
- Rotor for an axial flow rotary separator37US 4,574,815 ADeere & Company · 1986
- Feeding arrangement for an axial flow rotary separator35US 4,739,773 ADeere & Company · 1988