USPC Class Details – HistoricIP

Description: 702 data processing: measuring, calibrating, or testing / 702 data processing: measuring, calibrating, or testing/(127) measurement system (189) measured signal processing (190) signal extraction or separation (e.g., filtering)

Hierarchy/Derived subclasses

702 / 127	-> 189	-> 190	-> 191	-> 193
				-> 194	-> 195
			-> 196	-> 197

uspto searches

Patent Apps in 702/190

Granted Patents in 702/190

Use the links above or do an advanced search in ppubs for:
(702/190.ccls. or 702/191.ccls. or 702/193.ccls. or 702/194.ccls. or 702/195.ccls. or 702/196.ccls. or 702/197.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.