1. A method of searching for intellectual property information utilizing an intellectual property classification system, the method comprising the steps of: (a) providing a classification index for on-line access to a list of subject headings referring to specific classification made in the classification system; (b) providing a classification manual for on-line access to a list of class titles in the classification system; (c) providing classification definitions for on-line access to explanations and illustrations of subject matter classified in each classification; (d) defining search criteria by selecting at least one search classification containing intellectual property information to be searched; (e) storing in a storage bank the search criteria, wherein the storage bank is accessible for editing the search criteria; and (f) retrieving search results including intellectual property information corresponding to the search criteria stored in the storage bank.