A22C 29/021
Cleaning operations on shellfish
Official title: {Cleaning operations on shellfish, e.g. evisceration, brushing}
A22C29/021 (Cleaning operations on shellfish) appears on 63 US grants and 32 published applications in this corpus.
Search patents in A22C- Granted patents
- 63
- Published applications
- 32
- Assignees
- 19
- Inventors
- 120
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 3 |
| 2018 | 3 | 7 |
| 2019 | 7 | 2 |
| 2020 | 0 | 1 |
| 2021 | 7 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 5 |
| 2024 | 4 | 1 |
| 2025 | 3 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Shrimp processing apparatus and methods15 Sep 2026US 12,733,653 B2Nova-Tech Engineering, Inc.
- Shrimp processing apparatus and methods4 Nov 2025US 12,458,034 B2Nova-Tech Engineering, Inc.
- Basket for use with a washing system for the cleaning of crustacea15 Jul 2025US 12,356,999 B2
- Shrimp peeling device11 Feb 2025US 12,219,967 B2Densea Aquatic Technology (Huazhou) Co., Ltd.
- Shrimp processing apparatus and methods17 Sep 2024US 12,089,605 B2Nova-Tech Engineering, Inc.
- Shrimp processing apparatus and methods5 Feb 2026US 2026/0033502 A1Nova-Tech Engineering, Inc.
- Shrimp processing apparatus and methods22 Aug 2024US 2024/0276996 A1Nova-Tech Engineering, Inc.
- Shrimp peeling device18 May 2023US 2023/0148616 A1Densea Aquatic Technology (Huazhou) Co., Ltd.
- Shrimp processing apparatus and methods4 May 2023US 2023/0138989 A1Nova-Tech Engineering, Inc.
- Crawfish ice chest water circulation device13 Apr 2023US 2023/0110277 A1
Most cited
By later US patents
- Shrimp deveining apparatus24US 5,613,903 A1997
- Universal shrimp peeling machine21US 4,745,660 AGregor Jonsson Associates, Inc. · 1988
- Knife for de-veining, peeling and butterflying shrimp20US 4,759,126 A1988
- Spring cam for shrimp clamp19US 4,439,893 AGregor Jonsson Associates, Inc. · 1984
- Crab butchering machine18US 4,293,981 A1981