USPC Class Details

Description: 501 compositions: ceramic / 501 compositions: ceramic/(1) ceramic compositions (11) glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions (53) silica containing

Hierarchy/Derived subclasses

501 / 1	-> 11	-> 53	-> 54
			-> 55	-> 56	-> 57	-> 58	-> 59
				-> 60	-> 61
					-> 62
				-> 63
				-> 64
				-> 65	-> 66	-> 67
				-> 68	-> 69	-> 70	-> 71
				-> 72
			-> 73	-> 74	-> 75	-> 76
				-> 77	-> 78
					-> 79

uspto searches

Patent Apps in 501/53

Granted Patents in 501/53

Use the links above or do an advanced search in ppubs for:
(501/53.ccls. or 501/54.ccls. or 501/55.ccls. or 501/56.ccls. or 501/57.ccls. or 501/58.ccls. or 501/59.ccls. or 501/60.ccls. or 501/61.ccls. or 501/62.ccls. or 501/63.ccls. or 501/64.ccls. or 501/65.ccls. or 501/66.ccls. or 501/67.ccls. or 501/68.ccls. or 501/69.ccls. or 501/70.ccls. or 501/71.ccls. or 501/72.ccls. or 501/73.ccls. or 501/74.ccls. or 501/75.ccls. or 501/76.ccls. or 501/77.ccls. or 501/78.ccls. or 501/79.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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