USPC Class Details

Description: 342 communications: directive radio wave systems and devices (e.g., radar, radio navigation) / 342 communications: directive radio wave systems and devices (e.g., radar, radio navigation)/(350) directive (385) beacon or receiver (417) direction-finding receiver only (432) with plural fixed antenna pattern comparing

Hierarchy/Derived subclasses

342 / 350	-> 385	-> 417	-> 432	-> 433	-> 434
					-> 435
					-> 436
				-> 437
				-> 438
				-> 439
				-> 440

uspto searches

Patent Apps in 342/432

Granted Patents in 342/432

Use the links above or do an advanced search in ppubs for:
(342/432.ccls. or 342/433.ccls. or 342/434.ccls. or 342/435.ccls. or 342/436.ccls. or 342/437.ccls. or 342/438.ccls. or 342/439.ccls. or 342/440.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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