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 (452) grouping of fuel cells into stack or module (471) comprising a plurality of stacks (e.g., modular assembly, etc.)

Hierarchy/Derived subclasses

429 / 400

-> 452

-> 471

uspto searches

Patent Apps in 429/471

Granted Patents in 429/471

Use the links above or do an advanced search in ppubs for:
(429/471.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.

Display:

Back