USPC Class Details

Description: 62 refrigeration / 62 refrigeration/(600) cryogenic treatment of gas or gas mixture (617) separation of gas mixture (618) natural gas (632) liquid contact (635) plural contact columns

Hierarchy/Derived subclasses

62 / 600-> 617-> 618-> 632-> 635

uspto searches

Patent Apps in 62/635

Granted Patents in 62/635

Use the links above or do an advanced search in ppubs for:
(62/635.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
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