EXHIBIT 21 Vector Vision, Inc. (Delaware) (56.1% owned) Organized April 19, 1994 Qualified in Connecticut Files separate Federal and Connecticut income tax returns Consolidated in Competitive Technologies, Inc. and Subsidiaries audited financial statements filed with the SEC CTT Trading Company, LLC (Connecticut) (100% owned) Organized May 23, 2006 Qualified in Connecticut Included in Federal and Connecticut income tax returns Consolidated in Competitive Technologies, Inc. and Subsidiaries audited financial statements filed with the SEC