A01K 31/002
Poultry cages
Official title: {Poultry cages, e.g. transport boxes (Harvesting or transport of poultry A01K45/005)}
A01K31/002 (Poultry cages) appears on 148 US grants and 122 published applications in this corpus.
Search patents in A01K- Granted patents
- 148
- Published applications
- 122
- Assignees
- 96
- Inventors
- 249
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 4 |
| 2004 | 3 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 4 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 4 |
| 2013 | 0 | 4 |
| 2014 | 2 | 6 |
| 2015 | 2 | 8 |
| 2016 | 4 | 11 |
| 2017 | 12 | 12 |
| 2018 | 4 | 6 |
| 2019 | 5 | 17 |
| 2020 | 8 | 9 |
| 2021 | 11 | 9 |
| 2022 | 7 | 3 |
| 2023 | 6 | 4 |
| 2024 | 6 | 4 |
| 2025 | 6 | 3 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rearing-keeping facility for rearing poultry animals, corresponding poultry animal house and use24 Feb 2026US 12,557,791 B2Big Dutchman International GmbH
- Laying nest provided with an improved ejection system10 Feb 2026US 12,543,707 B2Valli S.P.A.
- Horizontal feed storage system2 Dec 2025US 12,484,549 B2Perdue Foods LLC
- Poultry coop and confinement area18 Nov 2025US 12,471,573 B1Nestera Inc.
- Automated hen house monitoring device21 Oct 2025US 12,446,555 B1
- Extension system for aviaries1 Oct 2026US 2026/0293858 A1Zucami Poultry Equipment, S.L.U.
- Chicken nest with egg collector9 Apr 2026US 2026/0096542 A1Obschestvo s Ogranichennoy Otvetstvennostyu Chistoye Prechistoye
- Horizontal feed storage system26 Mar 2026US 2026/0083090 A1Purdue Foods LLC
- Automated hen house monitoring device12 Feb 2026US 2026/0041066 A1
- Manure conveying device, in particular for use in barn egg production or broiler production12 Feb 2026US 2026/0041067 A1noltewerk GmbH & Co. KG
Most cited
By later US patents
- Collapsible animal cage67US 4,590,885 ATokyo Petcage Co., Ltd. · 1986
- Disposable receptacle with integral flexible closure41US 4,779,566 A1988
- High-rise laying hen rearing facility and method35US 5,865,143 ATrustees of University of Arkansas and United States of America · 1999
- Apparatus and method for raising and transporting poultry33US 4,020,793 AB & J Machinery Company, Inc. · 1977
- Poultry tray liner33US 4,832,228 A1989