USPC Class Details

Description: 429 chemistry: electrical current producing apparatus, product, and process / 429 chemistry: electrical current producing apparatus, product, and process/(400) fuel cell, subcombination thereof, or method of making or operating (479) fuel cell with solid electrolyte (480) with gas diffusion electrode

Hierarchy/Derived subclasses

429 / 400

-> 479

-> 480

-> 481

uspto searches

Patent Apps in 429/480

Granted Patents in 429/480

Use the links above or do an advanced search in ppubs for:
(429/480.ccls. or 429/481.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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