USPC Class Details

Description: 380 cryptography / 380 cryptography/(255) communication system using cryptography (42) data stream/substitution enciphering (43) key sequence signal combined with data signal

Hierarchy/Derived subclasses

380 / 255

-> 42

-> 43

uspto searches

Patent Apps in 380/43

Granted Patents in 380/43

Use the links above or do an advanced search in ppubs for:
(380/43.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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