USPC Class Details – HistoricIP

Description: 505 superconductor technology: apparatus, material, process / 505 superconductor technology: apparatus, material, process/(825) apparatus, per se, device, per se, or process of making or operating same (831) static information storage system or device: (class 365, 365/160) (833) thin film type: (class 365/161)

Hierarchy/Derived subclasses

505 / 825	-> 831	-> 833	-> 834	-> 835
				-> 836
				-> 837

uspto searches

Patent Apps in 505/833

Granted Patents in 505/833

Use the links above or do an advanced search in ppubs for:
(505/833.ccls. or 505/834.ccls. or 505/835.ccls. or 505/836.ccls. or 505/837.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.