definiens: means all Information Controlled, as of the Signing Date or any time thereafter before expiration or termination of this Agreement, by Principia or any of its Affiliates t hat is reasonably necessary or useful for ( or was actually used in ) the Development or Commercialization ( inc luding the research, development, manufacture, having manu factured, use, importation, exportation, registrati on, offer for sale or sale ) of Compounds or Products, includi ng any such Information made or generated by or on behalf of Principia or any of its Affiliates in the course of performing Principia ’s obligations or exercising P rincipia ’s rights under this Agreement, excluding rights under any Principia Patents and Principia ’s interests in Joint Patents and Joint Inventions and excluding any Info rmation to the extent relating to any proprietary c ompound owned by Principia or its Affiliates which propriet ary compound is not a Compound