CPC Definition - Subclass A01J

Last Updated Version: 2026.01
MANUFACTURE OF DAIRY PRODUCTS
Relationships with other classification places

Subclass A01J covers mechanical aspects of dairy product manufacturing, e.g. apparatus for the mechanical treatment of milk or cream for making butter or cheese.

Subclass A23C covers chemical aspects of dairy product manufacturing, which include apparatus for chemical processes such as concentration, evaporation or drying.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Preservation of milk or dairy products

A23B 11/00

Covering the cheese surface, e.g. with wax coating compositions

A23C 19/16

Devices or accessories for milking by hand (milking stools A47C 9/04)
Definition statement

This place covers:

Illustrative examples of subject matter classified in this place:

1.

media28.png

2.

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3.

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References
Limiting references

This place does not cover:

Milking stools

A47C 9/04

Milking with catheters
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media15.png

The Figure illustrates a self-supporting probe for a milking machine, specifically a diagrammatic sagittal section of the tank of a teat of an extended cow by a teat, in which a probe is inserted.

Milking machines or devices (A01J 1/00, A01J 3/00 take precedence)
Definition statement

This place covers:

Milking robots or monitoring devices.

Illustrative example of subject matter classified in this place:

media16.png

The Figure illustrates a milking robot and method for teat cup attachment.

References
Limiting references

This place does not cover:

Devices or accessories for milking by hand

A01J 1/00

Milking with catheters

A01J 3/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cleaning milking installations and teats

A01J 7/00

Milk tanks

A01J 9/00

Milking stations

A01K 1/12

Accessories for milking machines or devices
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media31.png

The Figure illustrates a cleaner for dairy equipment.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Milk tanks

A01J 9/00

Cleaning stalls

A01K 1/00

Milking stations

A01K 1/12

for cleaning or sanitising milking machines or devices
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Cleaning the internal surfaces of pipes or tubes of milking machines

B08B 9/027

Milk receptacles
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media18.png

The Figure illustrates a data logger in the form of a temperature sensing device having three temperature sensors.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Containers in general

B65D

Devices for tilting and emptying of containers

B65G 65/23

Apparatus for treating milk (preservation of milk or milk preparations A23B 11/10; dairy concentration, evaporation or drying A23C 1/00)
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media19.png

The Figure illustrates a whey cream-removal station for whey processing during cheese production.

References
Limiting references

This place does not cover:

Preservation of milk or milk preparations

A23B 11/10

Dairy concentration, evaporation or drying

A23C 1/00

Appliances for preventing or destroying foam (preventing boiling-over of milk in kitchen cooking vessels A47J 27/56)
References
Limiting references

This place does not cover:

Preventing boiling-over of milk in kitchen cooking vessels

A47J 27/56

Informative references

Attention is drawn to the following places, which may be of interest for search:

Preventing foaming in boiling apparatus

B01B 1/02

Appliances for aerating or de-aerating milk
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Milk centrifuges

B04B

Strainers or filters for milk
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Filtering materials

B01D

Separating milk from cream
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Milk centrifuges

B04B

Homogenising milk
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Homogenising in general

B01F

Tanks for treating cream
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media20.png

The Figure illustrates a cream tank.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Cream preparations

A23C 13/00

Manufacturing butter
Definition statement

This place covers:

Apparatus for manufacturing butter.

Illustrative example of subject matter classified in this place:

media21.png

The Figure illustrates a butter churn.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Butter preparations

A23C 15/00

Means for removing butter from churns or the like
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Pumps therefor

F04

Kneading machines for butter, or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media22.png

The Figure illustrates an apparatus for working of butter.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Mixing or kneading machines for the preparation of dough

A21C 1/00

Hand devices for forming slabs of butter, or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media23.png

The Figure illustrates an improved device for forming pats or rolls of butter.

Machines for forming slabs of butter, or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media24.png

The Figure illustrates a butter and oleomargarine cutting machine.

Devices for dividing bulk butter, or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media25.png

The Figure illustrates masses of butter or margarine being subdivided into blocks.

Cheese-making (coating the cheese A01J 27/02)
Definition statement

This place covers:

Apparatus for cheese-making.

Illustrative example of subject matter classified in this place:

media26.png

The Figure illustrates a device and method for processing a mixture of curd and whey.

References
Limiting references

This place does not cover:

Devices for coating of cheese

A01J 27/02

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cheese preparations

A23C 19/00

After-treatment of cheese; Coating of cheese
Definition statement

This place covers:

Illustrative example of subject matter classified in this place:

media27.png

The Figure illustrates a method and device for spraying a layer of protective material on cheese.

Devices for coating of cheese
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Applying liquids or other fluent materials to surfaces in general

B05