A01F 25/2018
Bottom unloading units for tower silos
Official title: {Bottom unloading units for tower silos}
A01F25/2018 (Bottom unloading units for tower silos) appears on 52 US grants and 34 published applications in this corpus.
Search patents in A01F- Granted patents
- 52
- Published applications
- 34
- Assignees
- 22
- Inventors
- 68
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 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 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 4 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 3 |
| 2018 | 3 | 2 |
| 2019 | 4 | 1 |
| 2020 | 3 | 8 |
| 2021 | 3 | 5 |
| 2022 | 3 | 4 |
| 2023 | 5 | 0 |
| 2024 | 2 | 2 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sweep auger drive shield with gravity reclaim20 May 2025US 12,304,757 B2Sukup Manufacturing Company
- Sweep system for full elevated floor grain bins15 Apr 2025US 12,275,604 B2Sukup Manufacturing Company
- Grain bin unload trough conveyor auger hanger assembly and method18 Mar 2025US 12,252,349 B2CTB, Inc.
- Vibratory attachment for a grain auger17 Sep 2024US 12,089,538 B1
- Grain bin unload trough conveyor auger hanger assembly and method9 Apr 2024US 11,952,218 B2CTB, Inc.
- Remote operated vehicle for cleaning grain bins9 Jul 2026US 2026/0191145 A1
- Grain bin unload trough conveyor auger hanger assembly and method27 Jun 2024US 2024/0208735 A1CTB, Inc.
- Sweep auger drive shield with gravity reclaim18 Apr 2024US 2024/0124252 A1Sukup Manufacturing Company
- Bulk bin lid opener10 Nov 2022US 2022/0356008 A1Barntools, LLC
- Sweep auger drive shield with gravity reclaim27 Oct 2022US 2022/0340379 A1Sukup Manufacturing Company
Most cited
By later US patents
- Stackable hopper bottom for storage bin103US 5,836,480 A1998
- Silo center discharge mechanism70US 4,057,153 A1977
- Grain auger system36US 4,669,941 AAr-Man Construction, Ltd. · 1987
- Silo unloader and apparatus therefor30US 4,057,151 A1977
- Bin sweep with inclined portion21US 9,288,946 B1Sioux Steel Company · 2016