A23B 2/00
Preservation of foods or foodstuffs, in general
A23B2/00 (Preservation of foods or foodstuffs, in general) appears on 5,886 US grants and 6,885 published applications in this corpus.
Search patents in A23B- Granted patents
- 5,886
- Published applications
- 6,885
- Assignees
- 3,471
- Inventors
- 14,327
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 70 | 0 |
| 1977 | 51 | 0 |
| 1978 | 52 | 0 |
| 1979 | 43 | 0 |
| 1980 | 48 | 0 |
| 1981 | 54 | 0 |
| 1982 | 68 | 0 |
| 1983 | 61 | 0 |
| 1984 | 46 | 0 |
| 1985 | 45 | 0 |
| 1986 | 46 | 0 |
| 1987 | 59 | 0 |
| 1988 | 72 | 0 |
| 1989 | 116 | 0 |
| 1990 | 86 | 0 |
| 1991 | 102 | 0 |
| 1992 | 110 | 0 |
| 1993 | 97 | 0 |
| 1994 | 120 | 0 |
| 1995 | 112 | 0 |
| 1996 | 114 | 0 |
| 1997 | 111 | 0 |
| 1998 | 128 | 0 |
| 1999 | 150 | 0 |
| 2000 | 173 | 0 |
| 2001 | 161 | 38 |
| 2002 | 125 | 148 |
| 2003 | 120 | 194 |
| 2004 | 110 | 237 |
| 2005 | 72 | 238 |
| 2006 | 81 | 200 |
| 2007 | 71 | 181 |
| 2008 | 69 | 181 |
| 2009 | 64 | 211 |
| 2010 | 79 | 251 |
| 2011 | 102 | 267 |
| 2012 | 107 | 239 |
| 2013 | 136 | 283 |
| 2014 | 162 | 300 |
| 2015 | 158 | 285 |
| 2016 | 199 | 297 |
| 2017 | 172 | 323 |
| 2018 | 179 | 344 |
| 2019 | 211 | 397 |
| 2020 | 207 | 438 |
| 2021 | 220 | 376 |
| 2022 | 220 | 386 |
| 2023 | 205 | 376 |
| 2024 | 223 | 282 |
| 2025 | 203 | 240 |
| 2026 | 96 | 173 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A23B 2/70Preservation of foods or foodstuffs, in general: by treatment with chemicals2,676
- A23B 2/80Freezing1,187
- A23B 2/40Preservation of foods or foodstuffs, in general: by heating loose unpacked materials536
- A23B 2/50Preservation of foods or foodstuffs, in general: by irradiation without heating507
- A23B 2/90Preservation of foods or foodstuffs, in general: by drying or kilning471
- A23B 2/05Preservation of foods or foodstuffs, in general: by heating using irradiation or407
- A23B 2/10Preservation of foods or foodstuffs, in general: by treatment with pressure variation391
- A23B 2/001Details of apparatus331
All 12 subgroupsShow fewer
- A23B 2/20Preservation of foods or foodstuffs, in general: by heating materials in packages314
- A23B 2/30Preservation of foods or foodstuffs, in general: by heating materials in packages241
- A23B 2/003Control or safety devices for sterilisation or pasteurisation systems219
- A23B 2/60Preservation of foods or foodstuffs, in general: by treatment with electric currents158
Recent patents
- Decontamination tank and method for treating food products6 Oct 2026US 12,751,464 B2Morris & Associates, Inc.
- Method for preparing natural nitrite6 Oct 2026US 12,753,422 B2Cj Cheiljedang Corporation
- Reheatable food product29 Sep 2026US 12,745,792 B2Lily's Toaster Grills, LLC
- Sliced rare, medium rare and medium cooked roast beef in modified atmosphere packaging29 Sep 2026US 12,747,051 B2Cargill, Incorporated
- Hot fill container with wavy groove29 Sep 2026US 12,747,060 B2The Coca-Cola Company
- Acidic liquid seasoning, as well as oxidation prevention method, antioxidant, acidity reduction method and acidity reducer for acidic liquid seasoning8 Oct 2026US 2026/0305628 A1Kewpie Corporation
- Apparatus and method for preserving beverages with remote-controlled system monitoring and data evaluation with feedback8 Oct 2026US 2026/0305632 A1LANXESS Deutschland GmbH
- Magnetic field fresh-keeping apparatus and air-cooled refrigeration device8 Oct 2026US 2026/0309405 A1Haier Smart Home Co., Ltd.
- Variable power heater freeze-dryer apparatus and methods of use8 Oct 2026US 2026/0309412 A1Peak & Prairie Industries Corp.
- Space electromagnetic field generator and freshness maintenance device using the same8 Oct 2026US 2026/0311923 A1
Most cited
By later US patents
- Preservative systems comprising cationic surfactants878US 10,130,830 B2Laboratorios Miret, S. A. · 2018
- Apparatus and methods for magnetic separation featuring external magnetic means301US 5,466,574 AImmunivest Corporation · 1995
- Apparatus for magnetic separation featuring external magnetic means234US 5,186,827 AImmunicon Corporation · 1993
- Model-based alarming208US 6,990,821 B2Emerson Retail Services, Inc. · 2006
- Modular assembly for a holding cabinet controller204US 6,658,994 B1Chromalox, Inc. · 2003