USPC Class Details

Description: D14 recording, communication, or information retrieval equipment / d14 recording, communication, or information retrieval equipment/(496) video or audio transmission, recording or playback equipment (137) radio transceiver (e.g., walkie-talkie, 2-way radio, etc.) (138r) mobile telephone type (i.e., cellular or cordless unit with provision for initiation or reception of telephone calls)

Hierarchy/Derived subclasses

D14 / 496	-> 137	-> 138r	-> 138aa
			-> 138ab
			-> 138ac
			-> 138ad
			-> 138c
			-> 138g

uspto searches

Patent Apps in D14/138r

Granted Patents in D14/138r

Use the links above or do an advanced search in ppubs for:
(D14/138r.ccls. or D14/138aa.ccls. or D14/138ab.ccls. or D14/138ac.ccls. or D14/138ad.ccls. or D14/138c.ccls. or D14/138g.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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