USPC Class Details

Description: D14 recording, communication, or information retrieval equipment / d14 recording, communication, or information retrieval equipment/(300) computer, data processor equipment (356) peripheral equipment (420) scanner or bar code reader

Hierarchy/Derived subclasses

D14 / 300	-> 356	-> 420	-> 421
			-> 422
			-> 423
			-> 424	-> 425
			-> 426	-> 427
				-> 428	-> 429
				-> 430
				-> 431

uspto searches

Patent Apps in D14/420

Granted Patents in D14/420

Use the links above or do an advanced search in ppubs for:
(D14/420.ccls. or D14/421.ccls. or D14/422.ccls. or D14/423.ccls. or D14/424.ccls. or D14/425.ccls. or D14/426.ccls. or D14/427.ccls. or D14/428.ccls. or D14/429.ccls. or D14/430.ccls. or D14/431.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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