positive regulation of protein tyrosine phosphatase activity
Known as: upregulation of [phosphotyrosine]protein phosphatase activity, up regulation of phosphotyrosylprotein phosphatase activity, up-regulation of PPT-phosphatase activity
Any process that activates or increases the frequency, rate or extent of protein tyrosine phosphatase activity. [GO_REF:0000059, GOC:TermGenie, PMID…