A22C 13/00
Sausage casings
Official title: Sausage casings {(made of animal intestines A22C17/14)}
A22C13/00 (Sausage casings) appears on 801 US grants and 417 published applications in this corpus.
Search patents in A22C- Granted patents
- 801
- Published applications
- 417
- Assignees
- 223
- Inventors
- 1,085
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 27 | 0 |
| 1977 | 22 | 0 |
| 1978 | 19 | 0 |
| 1979 | 19 | 0 |
| 1980 | 17 | 0 |
| 1981 | 16 | 0 |
| 1982 | 23 | 0 |
| 1983 | 26 | 0 |
| 1984 | 17 | 0 |
| 1985 | 34 | 0 |
| 1986 | 30 | 0 |
| 1987 | 22 | 0 |
| 1988 | 30 | 0 |
| 1989 | 19 | 0 |
| 1990 | 18 | 0 |
| 1991 | 22 | 0 |
| 1992 | 12 | 0 |
| 1993 | 26 | 0 |
| 1994 | 18 | 0 |
| 1995 | 19 | 0 |
| 1996 | 11 | 0 |
| 1997 | 18 | 0 |
| 1998 | 30 | 0 |
| 1999 | 28 | 0 |
| 2000 | 20 | 0 |
| 2001 | 21 | 9 |
| 2002 | 7 | 13 |
| 2003 | 15 | 19 |
| 2004 | 12 | 41 |
| 2005 | 5 | 41 |
| 2006 | 16 | 35 |
| 2007 | 9 | 18 |
| 2008 | 5 | 25 |
| 2009 | 12 | 23 |
| 2010 | 17 | 26 |
| 2011 | 15 | 15 |
| 2012 | 14 | 18 |
| 2013 | 8 | 7 |
| 2014 | 4 | 14 |
| 2015 | 5 | 15 |
| 2016 | 8 | 10 |
| 2017 | 15 | 13 |
| 2018 | 10 | 15 |
| 2019 | 6 | 7 |
| 2020 | 12 | 12 |
| 2021 | 9 | 9 |
| 2022 | 10 | 12 |
| 2023 | 5 | 9 |
| 2024 | 10 | 7 |
| 2025 | 5 | 0 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A22C 13/0013Chemical composition of synthetic sausage casings489
- A22C 13/02Shirring of sausage casings143
- A22C 2013/002Made by extrusionIndexing code104
- A22C 2013/0053Multilayer casingsIndexing code88
- A22C 13/0003Apparatus for making sausage casings85
- A22C 2013/0096CellulosicIndexing code83
- A22C 2013/0059Thermoplastic casings, casings with at least one layer of thermoplastic materialIndexing code74
- A22C 2013/0046Suitable for impregnation with flavouring substancesIndexing code63
All 25 subgroupsShow fewer
- A22C 2013/0066Casings according to the presence or absence of seamsIndexing code52
- A22C 2013/0063Containing polyamideIndexing code49
- A22C 2013/0083Biaxially orientedIndexing code45
- A22C 13/0009End closures therefor34
- A22C 2013/0056Nets and similar open structures to hold sausages and meat in generalIndexing code29
- A22C 2013/0086Shrinkable casingsIndexing code28
- A22C 2013/004Sausage casings: with at least one layer of a gasIndexing code24
- A22C 2013/0089Smokable casingsIndexing code23
- A22C 2013/0079Printable sausage casings or sausage casings showing any kind of indiciaIndexing code15
- A22C 2013/003Sausage casings: with peeling aidsIndexing code12
- A22C 2013/0036Sausage casings: with features allowing an easy opening and/or removal of theIndexing code11
- A22C 2013/005Monolayer casingsIndexing code9
- A22C 2013/0043Sausage casings: with at least one layer of a water impermeable materialIndexing code7
- A22C 2013/0093Textile casings, casings with at least one layer of textile materialIndexing code7
- A22C 13/0026Chemical treatment of natural gut5
- A22C 2013/0076Treated in order to be conferred a rough appearanceIndexing code3
- A22C 2013/0033Sausage casings: with at least one layer of a fat impermeable materialIndexing code2
Recent patents
- Edible cellulosic casings and compositions, and methods of formation12 May 2026US 12,622,439 B2Viskase Companies, Inc.
- Food casing with permeability to smoke and water vapour and with improved transparency10 Mar 2026US 12,568,979 B2Kalle GmbH
- Dispersion of cellulose fibers and method of producing the same17 Feb 2026US 12,553,187 B2Metsa Fibre Oy
- End detection unit30 Dec 2025US 12,510,499 B2Van Hessen Holding B.V.
- Food product thermal treatment method9 Dec 2025US 12,490,747 B2Marel Further Processing B. V.
- Paper substrate for fibrous casing substrate8 Oct 2026US 2026/0308848 A1Nippon Paper Papylia Co., Ltd.
- Methods for forming edible cellulosic casings17 Sep 2026US 2026/0271947 A1Vaskase Companies, Inc.
- Seamless tubular knitted fabric, comprising an open knit with weft bushing locking to prevent unraveling27 Aug 2026US 2026/0250892 A1Viscoret Elastic Nets S.R.L.
- Apparatus and Method for Manufacturing Sausages13 Aug 2026US 2026/0231964 A1Freddy Hirsch Group AG
- Device and method for producing sachets filled with liquid or pasty filling material12 Dec 2024US 2024/0409256 A1Albert Handtmann Maschinenfabrik GmbH & Co. KG
Most cited
By later US patents
- Methods and compositions for oxygen scavenging190US 5,211,875 AW. R. Grace & Co.-Conn. · 1993
- Collagen-containing preparations108US 4,001,442 AElastin-Werk Aktiengesellschaft · 1977
- Edible film and method of making same98US 5,089,307 AMitsubishi Rayon Co., Ltd. · 1992
- Smoke-permeable tubular casing and process for its manufacture91US 4,396,039 AHoechst Aktiengesellschaft · 1983
- Apparatus for producing layered tubes or rings83US 5,056,293 AProcess Improvements Limited · 1991