USPC Class Details – HistoricIP

Description: 427 coating processes / 427 coating processes/(457) direct application of electrical, magnetic, wave, or particulate energy (487) polymerization of coating utilizing direct application of electrical, magnetic, wave, or particulate energy (i.e., including cross-linking, curing, and hardening of organics) (488) plasma initiated polymerization

Hierarchy/Derived subclasses

427 / 457	-> 487	-> 488	-> 489
			-> 490
			-> 491

uspto searches

Patent Apps in 427/488

Granted Patents in 427/488

Use the links above or do an advanced search in ppubs for:
(427/488.ccls. or 427/489.ccls. or 427/490.ccls. or 427/491.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.