1. CPC Sections
  2. CPC Section A
  3. CPC Class A01
  4. CPC Subclass A01J
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Version: 2026.01
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CPC
COOPERATIVE PATENT CLASSIFICATION
​​
A01J
MANUFACTURE OF DAIRY PRODUCTS [2026-01]
NOTES

  • This subclass covers mechanical aspects of dairy product manufacturing, e.g. apparatus for the mechanical treatment of milk or cream for making butter or cheese.
  • This subclass does not cover chemical aspects of dairy product manufacturing, which include apparatus for chemical processes such as concentration, evaporation or drying, and which are covered by subclass A23C.
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.}
Milking [2026-01]
A01J 1/00
Devices or accessories for milking by hand (milking stools A47C 9/04) [2013-01]
A01J 3/00
Milking with catheters [2013-01]
A01J 5/00
Milking machines or devices (A01J 1/00, A01J 3/00 take precedence) [2013-01]
A01J 5/003
.
Movable milking machines [2013-01]
A01J 5/007
.
Monitoring milking processes; Control or regulation of milking machines [2013-01]
A01J 5/0075
. .
{with a specially adapted stimulation of the teats} [2013-01]
A01J 5/01
. .
Milkmeters; Milk flow sensing devices {(air or gas separators in combination with liquid meters G01F 15/08)} [2013-01]
A01J 5/013
.
On-site detection of mastitis in milk [2013-01]
A01J 5/0131
. .
{by analysing the milk composition, e.g. concentration or detection of specific substances} [2013-01]
A01J 5/0132
. . .
{using a cell counter} [2013-01]
A01J 5/0133
. .
{by using electricity, e.g. conductivity or capacitance} [2013-01]
A01J 5/0134
. .
{by using filters or decanters} [2013-01]
A01J 5/0135
. .
{by using light, e.g. light absorption or light transmission} [2013-01]
A01J 5/0136
. .
{by using milk flow characteristics, e.g. differences between udder quarters or differences with previous milking runs} [2013-01]
A01J 5/0137
. .
{by using sound, e.g. ultrasonic detection} [2013-01]
A01J 5/0138
. .
{by using temperature} [2013-01]
A01J 5/017
.
Automatic attaching or detaching of clusters [2013-01]
A01J 5/0175
. .
{Attaching of clusters} [2013-01]
A01J 5/02
.
with mechanical manipulation of teats [2013-01]
A01J 5/04
.
with pneumatic manipulation of teats [2013-01]
A01J 5/041
. .
{Milk claw} [2013-01]
A01J 5/042
. .
{Milk releaser} [2013-01]
A01J 5/044
. .
{Milk lines or coupling devices for milk conduits} [2013-01]
A01J 5/045
. .
{Taking milk-samples (sampling in general G01N 1/00)} [2013-01]
A01J 5/047
. .
{Vacuum generating means, e.g. by connecting to the air-inlet of a tractor engine (vacuum pumps F04)} [2013-01]
A01J 5/048
. . .
{Vacuum regulators} [2013-01]
A01J 5/06
. .
Teat-cups with one chamber [2013-01]
A01J 5/08
. .
Teat-cups with two chambers [2013-01]
A01J 5/10
. .
Pulsators arranged otherwise than on teat-cups [2013-01]
A01J 5/12
. . .
with membranes [2013-01]
A01J 5/14
. . .
electromagnetically controlled [2013-01]
A01J 5/16
. .
Teat-cups with pulsating devices [2013-01]
A01J 7/00
Accessories for milking machines or devices [2013-01]
A01J 7/005
.
{Automatic vacuum shutoff at the end of milking} [2013-01]
A01J 7/02
.
for cleaning or sanitising milking machines or devices [2020-01]
A01J 7/022
. .
{Clean-in-Place Systems, i.e. CIP, for cleaning the complete milking installation in place} [2013-01]
A01J 7/025
. .
{Teat cup cleaning, e.g. by rinse jetters or nozzles} [2013-01]
A01J 7/027
. .
{Vessel cleaning, e.g. cleansing of milk tanks, milk vessels or milk separators} [2013-01]
A01J 7/04
.
for treatment of udders or teats, e.g. for cleaning [2013-01]
A01J 9/00
Milk receptacles [2020-01]
A01J 9/02
.
with straining or filtering devices [2013-01]
A01J 9/04
.
with cooling arrangements [2013-01]
A01J 9/06
.
with self-closing valve [2013-01]
A01J 9/08
.
Holding or supporting devices for milking receptacles [2013-01]
A01J 9/10
.
Milking pails connected with milking stools [2013-01]
Treatment of milk or cream [2013-01]
A01J 11/00
Apparatus for treating milk (preservation of milk or milk preparations A23B 11/10; dairy concentration, evaporation or drying A23C 1/00) [2025-01]
A01J 11/02
.
Appliances for preventing or destroying foam (preventing boiling-over of milk in kitchen cooking vessels A47J 27/56) [2020-01]
A01J 11/04
.
Appliances for aerating or de-aerating milk [2020-01]
A01J 11/06
.
Strainers or filters for milk [2020-01]
A01J 11/08
. .
Holders for strainers or cloth filters [2013-01]
A01J 11/10
.
Separating milk from cream [2020-01]
A01J 11/12
. .
Appliances for removing cream [2013-01]
A01J 11/14
. . .
by raising the level of the milk [2013-01]
A01J 11/16
.
Homogenising milk [2020-01]
A01J 13/00
Tanks for treating cream [2013-01]
A01J 15/00
Manufacturing butter [2013-01]
A01J 15/02
.
Stationary churns with beating equipment [2013-01]
A01J 15/04
.
Rotating or oscillating churns [2013-01]
A01J 15/06
. .
with beating equipment which is movable in respect of the churn wall [2013-01]
A01J 15/08
. .
without beating equipment which is movable in respect of the churn wall [2013-01]
A01J 15/10
.
Devices for manufacturing butter other than by churns [2013-01]
A01J 15/12
. .
with arrangements for making butter in a continuous process [2013-01]
A01J 15/14
.
Churns with arrangements for making butter by blowing-in air [2013-01]
A01J 15/16
.
Details; Accessories [2013-01]
A01J 15/18
. .
Devices for de-aerating [2013-01]
A01J 15/20
. .
Incorporation of revolution counters; Incorporation of alarm devices [2013-01]
A01J 15/22
. .
Lids or covers for butter churns [2013-01]
A01J 15/24
. .
Beaters for butter churns [2013-01]
A01J 15/25
. .
Means for removing butter from churns or the like [2020-01]
A01J 15/26
.
Combined appliances for separating, churning and kneading [2013-01]
A01J 15/28
.
Driving mechanisms [2013-01]
Kneading or forming butter; Kneading or forming margarine or butter substitutes [2013-01]
A01J 17/00
Kneading machines for butter, or the like [2020-01]
A01J 19/00
Hand devices for forming slabs of butter, or the like [2013-01]
A01J 21/00
Machines for forming slabs of butter, or the like [2013-01]
A01J 21/02
.
with extruding arrangements and cutting devices, with or without packing devices [2013-01]
A01J 23/00
Devices for dividing bulk butter, or the like [2013-01]
Cheese-making [2013-01]
A01J 25/00
Cheese-making (coating the cheese A01J 27/02) [2013-01]
A01J 25/001
.
{in basins} [2013-01]
A01J 25/002
.
{continuously} [2013-01]
A01J 25/004
.
{by filling curd into permanent containers, i.e. for sale of the final product} [2013-01]
A01J 25/005
.
{with salting the curd} [2013-01]
A01J 25/007
.
{Apparatus for making soft unripened cheese, e.g. cottage or cream cheese} [2013-01]
A01J 25/008
.
{Apparatus for making soft uncured Italian cheese, e.g. Mozzarella, Ricotta, Pasta Filata cheese} [2018-01]
A01J 25/02
.
Cheese basins [2013-01]
A01J 25/04
. .
Devices for cleaning cheese basins [2013-01]
A01J 25/06
.
Devices for dividing curdled milk [2013-01]
A01J 25/08
.
Devices for removing cheese from basins [2013-01]
A01J 25/10
.
Devices for removing whey from basins [2013-01]
A01J 25/11
.
Separating whey from curds; Washing the curds [2013-01]
A01J 25/111
. .
{by continuous separation} [2013-01]
A01J 25/112
. . .
{in cylinders} [2013-01]
A01J 25/114
. . .
{on endless belts} [2013-01]
A01J 25/115
. .
{by discontinuous separation} [2013-01]
A01J 25/117
. .
{Filter design} [2013-01]
A01J 25/118
. .
{Washing the curds} [2013-01]
A01J 25/12
.
Forming the cheese [2013-01]
A01J 25/123
. .
{Removing cheese from moulds} [2013-01]
A01J 25/126
. .
{Cleaning cheese making equipment (cleaning milking machines A01J 7/02)} [2013-01]
A01J 25/13
. .
Moulds therefor [2013-01]
A01J 25/15
. .
Presses therefor [2013-01]
A01J 25/16
.
Devices for treating cheese during ripening [2013-01]
A01J 25/162
. .
{for storing or turning of cheese} [2013-01]
A01J 25/165
. .
{Cold-storage rooms or ventilation systems for stocked cheese} [2013-01]
A01J 25/167
. .
{for salting cheese} [2013-01]
A01J 27/00
After-treatment of cheese; Coating of cheese [2026-01]
A01J 27/005
.
{Marking cheese} [2013-01]
A01J 27/02
.
Devices for coating of cheese [2026-01]
A01J 27/04
.
Milling or recasting cheese [2013-01]
A01J 27/045
. .
{Multilayer cheese} [2013-01]
A01J 99/00
Subject matter not provided for in other groups of this subclass [2013-01]