1. CPC Sections
  2. CPC Section A
  3. CPC Class A23
  4. CPC Subclass A23B
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CPC
COOPERATIVE PATENT CLASSIFICATION
​
A23B
PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS [2021-05]
WARNING

  • {In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.}
A23B 4/00
General methods for preserving meat, sausages, fish or fish products [2013-01]
A23B 4/002
.
{Preservation in association with shaping (A23B 4/0053, A23B 4/01, A23B 4/062 and A23B 4/066 take precedence)} [2013-01]
A23B 4/005
.
Preserving by heating [2013-01]
​
A23B 4/0053
. .
{with gas or liquids, with or without shaping, e.g. in form of powder, granules or flakes} [2013-01]
NOTE

  • The heating means for the gas or liquid are not classified
A23B 4/0056
. . .
{with packages, or with shaping in the form of blocks or portions} [2013-01]
A23B 4/01
. .
by irradiation or electric treatment {with or without shaping, e.g. in form of powder, granules or flakes} [2013-01]
A23B 4/012
. . .
{with packages, or with shaping in the form of blocks or portions} [2013-01]
A23B 4/015
.
Preserving by irradiation or electric treatment without heating effect [2013-01]
A23B 4/02
.
Preserving by means of inorganic salts (apparatus therefor A23B 4/26, A23B 4/32) [2013-01]
A23B 4/021
. .
{with apparatus adapted for gaseous preserving agents} [2013-01]
A23B 4/023
. .
by kitchen salt or mixtures thereof with inorganic or organic compounds [2013-01]
A23B 4/0235
. . .
{with organic compounds or biochemical products} [2013-01]
A23B 4/027
. .
by inorganic salts other than kitchen salt, or mixtures thereof with organic compounds, e.g. biochemical compounds [2013-01]
A23B 4/03
.
Drying; Subsequent reconstitution {(drying apparatus in general F26B)} [2013-01]
A23B 4/031
. .
{Apparatus for drying (A23B 4/037 takes precedence)} [2013-01]
A23B 4/033
. .
with addition of chemicals (A23B 4/037 takes precedence) [2013-01]
A23B 4/037
. .
Freeze-drying {, i.e. cryodessication, lyophilisation; Apparatus therefor} [2017-08]
A23B 4/044
.
Smoking; Smoking devices [2013-01]
A23B 4/048
. .
with addition of chemicals other than natural smoke [2013-01]
A23B 4/052
. .
Smoke generators {; Smoking apparatus (A23B 4/056 takes precedence)} [2017-08]
A23B 4/0523
. . .
{Smoke generators using wood-pyrolysis or wood-friction} [2013-01]
A23B 4/0526
. . .
{Smoke generators or smoking apparatus using liquid smoke in gaseous or liquid form} [2013-01]
A23B 4/056
. .
Smoking combined with irradiation or electric treatment, e.g. electrostatic smoking {; Apparatus therefor} [2017-08]
A23B 4/06
.
Freezing; Subsequent thawing; Cooling [2013-01]
A23B 4/062
. .
{the materials being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes (moving on the spot only A23B 4/066)} [2013-01]
A23B 4/064
. . .
{with packages or with shaping in the form of blocks or portions} [2013-01]
A23B 4/066
. .
{the materials not being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes} [2013-01]
A23B 4/068
. . .
{with packages or with shaping in the form of blocks or portions} [2013-01]
A23B 4/07
. .
Thawing subsequent to freezing [2013-01]
A23B 4/08
. .
with addition of chemicals {or treatment with chemicals} before or during cooling {, e.g. in the form of an ice coating or frozen block} [2017-08]
A23B 4/09
. . .
with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature [2013-01]
A23B 4/10
.
Coating with a protective layer; Compositions or apparatus therefor {(A23B 4/08 takes precedence)} [2013-01]
A23B 4/12
.
Preserving with acids; Acid fermentation [2013-01]
A23B 4/14
.
Preserving with chemicals not covered by groups A23B 4/02 or A23B 4/12 [2013-01]
A23B 4/16
. .
in the form of gases, e.g. fumigation; Compositions or apparatus therefor [2013-01]
A23B 4/18
. .
in the form of liquids or solids (apparatus therefor A23B 4/26, A23B 4/32) [2013-01]
A23B 4/20
. . .
Organic compounds; Microorganisms; Enzymes [2021-05]
A23B 4/22
. . . .
Microorganisms; Enzymes; {Antibiotics} [2017-08]
A23B 4/24
. . .
Inorganic compounds [2013-01]
A23B 4/26
.
Apparatus for preserving using liquids {; Methods therefor} [2017-08]
A23B 4/28
. .
by injection of liquids [2013-01]
A23B 4/285
. . .
{with inorganic salts} [2013-01]
A23B 4/30
. .
by spraying of liquids [2013-01]
A23B 4/305
. . .
{with inorganic salts} [2013-01]
A23B 4/32
.
Apparatus for preserving using solids [2013-01]
A23B 4/325
. .
{with inorganic salts} [2013-01]
A23B 5/00
Preservation of eggs or egg products [2021-05]
A23B 5/005
.
Preserving by heating [2013-01]
A23B 5/0052
. .
{in the shell} [2013-01]
A23B 5/0055
. .
{without the shell} [2013-01]
A23B 5/0057
. . .
{with packages} [2013-01]
A23B 5/01
. .
by irradiation or electric treatment [2013-01]
A23B 5/015
.
Preserving by irradiation or electric treatment without heating effect [2013-01]
A23B 5/02
.
Drying; Subsequent reconstitution [2013-01]
A23B 5/022
. .
{Drying with use of gas or vacuum} [2013-01]
A23B 5/025
. .
{Drying} with addition of chemicals (A23B 5/03, A23B 5/035 take precedence) [2013-01]
A23B 5/0255
. . .
{Drying with use of liquids, e.g. by extraction} [2013-01]
A23B 5/03
. .
Freeze-drying {, i.e. cryodessication, lyophilisation; Apparatus therefor} [2017-08]
A23B 5/035
. .
Spray-drying [2013-01]
A23B 5/04
.
Freezing; Subsequent thawing; Cooling [2013-01]
A23B 5/041
. .
{Freezing or cooling without shell (A23B 5/05 takes precedence)} [2013-01]
A23B 5/043
. . .
{with packages} [2013-01]
A23B 5/045
. .
Thawing subsequent to freezing [2013-01]
A23B 5/05
. .
{Freezing or cooling} with addition of chemicals [2013-01]
A23B 5/055
. . .
with direct contact between the food and the chemical, e.g. liquid nitrogen, at cryogenic temperature [2013-01]
A23B 5/06
.
Coating eggs with a protective layer; Compositions or apparatus therefor [2013-01]
A23B 5/065
. .
{Apparatus for coating} [2013-01]
A23B 5/08
.
Preserving with chemicals [2013-01]
A23B 5/10
. .
in the form of gases, e.g. fumigation; Compositions or apparatus therefor [2013-01]
A23B 5/12
. .
in the form of liquids or solids [2013-01]
A23B 5/14
. . .
Organic compounds; Microorganisms; Enzymes [2017-08]
A23B 5/16
. . . .
Microorganisms; Enzymes [2017-08]
A23B 5/18
. . .
Inorganic compounds [2013-01]
A23B 5/20
. . .
Apparatus for preserving using liquids [2013-01]
A23B 5/22
. . .
Apparatus for preserving using solids [2013-01]
A23B 7/00
Preservation or chemical ripening of fruit or vegetables [2013-01]
A23B 7/005
.
Preserving by heating [2013-01]
A23B 7/0053
. .
{by direct or indirect contact with heating gases or liquids} [2013-01]
A23B 7/0056
. . .
{with packages} [2013-01]
A23B 7/01
. .
by irradiation or electric treatment [2013-01]
A23B 7/012
. . .
{with packages} [2013-01]
A23B 7/015
.
Preserving by irradiation or electric treatment without heating effect [2013-01]
A23B 7/02
.
Dehydrating; Subsequent reconstitution (dried cooked potatoes A23L 19/12) [2016-08]
A23B 7/0205
. .
{by contact of the material with fluids, e.g. drying gas or extracting liquids} [2013-01]
A23B 7/021
. .
{Foam drying} [2013-01]
A23B 7/0215
. .
{Post-treatment of dried fruits or vegetables} [2013-01]
A23B 7/022
. .
with addition of chemicals {before or during drying, e.g. semi-moist products}(A23B 7/024 - A23B 7/028 take precedence) [2016-05]
A23B 7/024
. .
Freeze-drying {, i.e. cryodessication or lyophilisation} [2017-08]
A23B 7/026
. .
Spray-drying [2013-01]
A23B 7/028
. .
Thin layer-, drum- or roller-drying {or by contact with a hot surface} [2013-01]
A23B 7/03
. .
Drying raw potatoes [2013-01]
A23B 7/04
.
Freezing; Subsequent thawing; Cooling [2013-01]
A23B 7/0408
. .
{the material being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes (A23B 7/05 takes precedence; moving on the spot only A23B 7/0425)} [2013-01]
A23B 7/0416
. . .
{with packages or with shaping in the form of blocks or portions} [2013-01]
A23B 7/0425
. .
{the material not being transported through or in the apparatus, with or without shaping, e.g. in the form of powder, granules or flakes (A23B 7/05 takes precedence)} [2013-01]
A23B 7/0433
. . .
{with packages or with shaping in the form of blocks or portions} [2013-01]
A23B 7/0441
. .
{Treatment other than blanching preparatory to freezing} [2013-01]
A23B 7/045
. .
Thawing subsequent to freezing [2013-01]
A23B 7/05
. .
with addition of chemicals {or treatment with chemicals other than cryogenics, before or during cooling, e.g. in the form of an ice coating or frozen block} [2013-01]
A23B 7/055
. . .
with direct contact between the food and the chemical, e.g. liquid nitrogen, at cryogenic temperature [2013-01]
A23B 7/06
.
Blanching (machines therefor A23N 12/00) [2013-01]
A23B 7/08
.
Preserving with sugars (marmalade, jam or fruit jellies A23L 21/10) [2016-08]
A23B 7/085
. .
{in a solution of sugar} [2013-01]
A23B 7/10
.
Preserving with acids; Acid fermentation [2013-01]
A23B 7/105
. .
{Leaf vegetables, e.g. sauerkraut} [2013-01]
A23B 7/12
. .
Apparatus for compressing sauerkraut [2013-01]
A23B 7/14
.
Preserving or ripening with chemicals not covered by groups A23B 7/08 or A23B 7/10 [2013-01]
A23B 7/144
. .
in the form of gases, e.g. fumigation; Compositions or apparatus therefor [2021-05]
A23B 7/148
. . .
in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O [2013-01]
A23B 7/152
. . .
in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O {; Elimination of such other gases} [2017-08]
A23B 7/153
. .
in the form of liquids or solids [2013-01]
A23B 7/154
. . .
Organic compounds; Microorganisms; Enzymes [2021-05]
A23B 7/155
. . . .
Microorganisms; Enzymes; {Antibiotics} [2017-08]
A23B 7/157
. . .
Inorganic compounds [2013-01]
A23B 7/158
. . .
Apparatus for preserving using liquids [2013-01]
A23B 7/159
. . .
Apparatus for preserving using solids [2013-01]
A23B 7/16
.
Coating with a protective layer; Compositions or apparatus therefor (A23B 7/08 takes precedence) [2013-01]
A23B 9/00
Preservation of edible seeds, e.g. cereals [2013-01]
A23B 9/005
.
{Processes or apparatus using pressure variation or mechanical force, e.g. shock, acceleration, shear stress, contortion} [2013-01]
A23B 9/02
.
Preserving by heating [2013-01]
A23B 9/025
. .
{with use of gases} [2013-01]
A23B 9/04
. .
by irradiation or electric treatment [2013-01]
A23B 9/06
.
Preserving by irradiation or electric treatment without heating effect [2013-01]
A23B 9/08
.
Drying; Subsequent reconstitution [2013-01]
A23B 9/10
.
Freezing; Subsequent thawing; Cooling [2013-01]
A23B 9/12
. .
Thawing subsequent to freezing [2013-01]
A23B 9/14
.
Coating with a protective layer; Compositions or apparatus therefor [2013-01]
A23B 9/16
.
Preserving with chemicals [2013-01]
A23B 9/18
. .
in the form of gases, e.g. fumigation; Compositions or apparatus therefor [2013-01]
A23B 9/20
. . .
in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O [2013-01]
A23B 9/22
. . .
in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O [2013-01]
A23B 9/24
. .
in the form of liquids or solids [2013-01]
A23B 9/26
. . .
Organic compounds; Microorganisms; Enzymes [2017-08]
A23B 9/28
. . . .
Microorganisms; Enzymes; {Antibiotics} [2017-08]
A23B 9/30
. . .
Inorganic compounds [2013-01]
A23B 9/32
. . .
Apparatus for preserving using liquids [2013-01]
A23B 9/34
. . .
Apparatus for preserving using solids [2013-01]