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 (386) with transmisson of bearing or position determinative signals (387) iso-chronic type

Hierarchy/Derived subclasses

342 / 350	-> 385	-> 386	-> 387	-> 388	-> 389	-> 390
					-> 391
				-> 392

uspto searches

Patent Apps in 342/387

Granted Patents in 342/387

Use the links above or do an advanced search in ppubs for:
(342/387.ccls. or 342/388.ccls. or 342/389.ccls. or 342/390.ccls. or 342/391.ccls. or 342/392.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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