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 (523) electrode structure or composition

Hierarchy/Derived subclasses

429 / 400	-> 523	-> 524
		-> 525
		-> 526
		-> 527
		-> 528
		-> 529
		-> 530	-> 531
		-> 532	-> 533
			-> 534

uspto searches

Patent Apps in 429/523

Granted Patents in 429/523

Use the links above or do an advanced search in ppubs for:
(429/523.ccls. or 429/524.ccls. or 429/525.ccls. or 429/526.ccls. or 429/527.ccls. or 429/528.ccls. or 429/529.ccls. or 429/530.ccls. or 429/531.ccls. or 429/532.ccls. or 429/533.ccls. or 429/534.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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