USPC Class Details

Description: 266 metallurgical apparatus / 266 metallurgical apparatus/(200) means for melting or vaporizing metal or treating liquefied metal (216) by means introducing treating material (217) gaseous treating material (218) having fluid inlet formed in vessel wall, e.g., tuyere

Hierarchy/Derived subclasses

266 / 200	-> 216	-> 217	-> 218	-> 219
				-> 220
				-> 221	-> 222
				-> 223
				-> 224

uspto searches

Patent Apps in 266/218

Granted Patents in 266/218

Use the links above or do an advanced search in ppubs for:
(266/218.ccls. or 266/219.ccls. or 266/220.ccls. or 266/221.ccls. or 266/222.ccls. or 266/223.ccls. or 266/224.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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