Subclass	Subgroup	Patent
C01B	3/04	11104574
	3/40	11104575
	23/0094	11104576
	32/19	11104577
		11104578
	32/205	11104579
	32/336	11104580
		11104581
	33/10773	11104582
	33/193	11104583
C01G	23/047	11104584
	43/003	11104585