USPC Class Details

Description: 712 electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors) / 712 electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors)/(1) processing architecture (32) microprocessor or multichip or multimodule processor having sequential program control (38) offchip interface (40) external sync or interrupt signal

Hierarchy/Derived subclasses

712 / 1-> 32-> 38-> 40

uspto searches

Patent Apps in 712/40

Granted Patents in 712/40

Advanced search in patft or appft for the hierarchy would be:
(ccl/712/40)

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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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