A22B 5/165
Ring knives specially adapted for skinning
Official title: {Ring knives specially adapted for skinning (motor driven tools with annular blades B26B25/002)}
A22B5/165 (Ring knives specially adapted for skinning) appears on 57 US grants and 60 published applications in this corpus.
Search patents in A22B- Granted patents
- 57
- Published applications
- 60
- Assignees
- 10
- Inventors
- 38
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 2 | 1 |
| 2012 | 3 | 4 |
| 2013 | 1 | 13 |
| 2014 | 7 | 6 |
| 2015 | 6 | 1 |
| 2016 | 4 | 5 |
| 2017 | 2 | 0 |
| 2018 | 4 | 7 |
| 2019 | 3 | 1 |
| 2020 | 3 | 3 |
| 2021 | 3 | 3 |
| 2022 | 1 | 2 |
| 2023 | 4 | 2 |
| 2024 | 2 | 2 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cam-actuated split blade housing for power operated rotary knife21 Jul 2026US 12,686,140 B2Bettcher Industries, Inc.
- Blade-blade housing bearing interface for a low friction rotary knife19 May 2026US D1,126,711 S1Bettcher Industries, Inc. · Design
- Annular blade23 Sep 2025US D1,094,052 S1Bettcher Industries, Inc. · Design
- Cam-actuated split blade housing for power operated rotary knife10 Sep 2024US 12,083,695 B2Bettcher Industries, Inc.
- Split blade housing with expansion sleeve assembly for power operated rotary knife26 Mar 2024US 11,938,642 B2Bettcher Industries, Inc.
- Trimming Systems and Methods6 Nov 2025US 2025/0338861 A1Georgia Tech Research Corporation
- Cam-actuated split blade housing for power operated rotary knife26 Dec 2024US 2024/0424702 A1Bettcher Industries, Inc.
- Cam-actuated split blade housing for power operated rotary knife4 Jan 2024US 2024/0001572 A1Bettcher Industries, Inc.
- Power operated rotary knife29 Jun 2023US 2023/0202066 A1Bettcher Industries, Inc.
- Cam mechanism for split blade housing of power operated rotary knife23 Feb 2023US 2023/0053515 A1Bettcher Industries, Inc.
Most cited
By later US patents
- Rotary blade holder84US 4,236,531 A1980
- Low friction rotary knife72US 6,769,184 B1Bettcher Industries, Inc. · 2004
- Boning and defatting rotary knife54US 6,615,494 B22003
- Low friction rotary knife46US 7,000,325 B2Bettcher Industries, Inc. · 2006
- Large diameter notched blade and blade housing for power operated rotary knife45US 8,448,340 B2Bettcher Industries, Inc. · 2013