US PATENT SUBCLASS 502 / 517
.~ Sulfur or sulfur compound removal

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

515  DF  SPECIFIC CONTAMINANT REMOVAL {3}
517.~ Sulfur or sulfur compound removal

DEFINITION

Classification: 502/517

Sulfur or sulfur compound removal:

(under subclass 515) Collection of Art in which the element number 16 or a compound of such element is removed from the composition.