A01K 5/01
Feed troughs
Official title: Feed troughs; Feed pails
A01K5/01 (Feed troughs) appears on 1,208 US grants and 1,357 published applications in this corpus.
Search patents in A01K- Granted patents
- 1,208
- Published applications
- 1,357
- Assignees
- 468
- Inventors
- 2,190
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 11 | 0 |
| 1982 | 8 | 0 |
| 1983 | 1 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 11 | 0 |
| 1989 | 11 | 0 |
| 1990 | 16 | 0 |
| 1991 | 20 | 0 |
| 1992 | 20 | 0 |
| 1993 | 17 | 0 |
| 1994 | 19 | 0 |
| 1995 | 13 | 0 |
| 1996 | 25 | 0 |
| 1997 | 13 | 0 |
| 1998 | 26 | 0 |
| 1999 | 28 | 0 |
| 2000 | 24 | 0 |
| 2001 | 22 | 5 |
| 2002 | 25 | 25 |
| 2003 | 24 | 29 |
| 2004 | 19 | 26 |
| 2005 | 21 | 38 |
| 2006 | 23 | 53 |
| 2007 | 21 | 44 |
| 2008 | 22 | 49 |
| 2009 | 14 | 41 |
| 2010 | 25 | 55 |
| 2011 | 24 | 41 |
| 2012 | 30 | 54 |
| 2013 | 36 | 45 |
| 2014 | 40 | 49 |
| 2015 | 28 | 48 |
| 2016 | 50 | 79 |
| 2017 | 45 | 81 |
| 2018 | 52 | 74 |
| 2019 | 44 | 79 |
| 2020 | 61 | 62 |
| 2021 | 52 | 56 |
| 2022 | 36 | 80 |
| 2023 | 41 | 55 |
| 2024 | 41 | 70 |
| 2025 | 50 | 54 |
| 2026 | 49 | 65 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Programmable animal feeder6 Oct 2026US 12,751,421 B2
- Lidded feed cover29 Sep 2026US 12,745,750 B1
- Livestock animal substance application system15 Sep 2026US 12,733,626 B1
- Pet feeder8 Sep 2026US 12,727,577 B1Dongguan ZhiYHong Hardware & Plastic Co., Ltd.
- Dispensing device for animal food1 Sep 2026US 12,721,306 B2Houndsy, LLC
- Smart Pet Feeding System8 Oct 2026US 2026/0305567 A1
- Lidded Feed Cover1 Oct 2026US 2026/0293844 A1
- Automatic feeding assembly24 Sep 2026US 2026/0283105 A1Automated Pet Care Products, LLC d/b/a WHISKER
- Livestock restraining and management system with trained sensory signaling6 Aug 2026US 2026/0223808 A1Co-Exist Ltd
- Food container compatible with automatic feeding assembly6 Aug 2026US 2026/0223813 A1Automated Pet Care Products, LLC d/b/a WHISKER
Most cited
By later US patents
- Animal treat dispensing toy128US 6,098,571 AT. F. H. Publications, Inc. · 2000
- Animal feeding apparatus109US 8,201,520 B2Rick Meritt Investments, Ltd. · 2012
- Dog toy for dispensing dog food105US 6,073,581 A2000
- Pet toy ball feeder101US 6,237,538 B1Napro, Inc. · 2001
- Knock-down animal feeder95US 4,721,063 A1988