Compustat File -------------- Source: USPTO, Compustat, and match done by Bronwyn Hall and associates. The Compustat file lists company names and associated assignee identifier (from Pat63_99) and the matched Compustat identifier (CUSIP). The file provides the full name of the company as it appears in both the patent and Compustat data. The file also contains the name of the parent company and subsidiary company if such information exists. No. of observations: 4,906 Variable Name Variable type Characters Contents assignee numeric 12 Assignee Identifier assname charachters 80 Patent Assignee Name pname charachters 60 Parent Name sname charachters 60 Subsidiary Name own numeric 5 Percent of Ownership cusip charachters 6 Compustat CUSIP cname charachters 36 Compustat Name The Compustat file is sorted by ascending Assignee Identifier. The Compustat file is NOT sorted alphabetically (some portions of the file, however, may appear to be in alphabetical order).