This is a standard short-form intellectual property (IP) assignment agreement for use as an ancillary agreement to a contribution agreement (or other principal agreement) providing for the transfer of IP assets to a joint venture entity. This IP assignment agreement can be attached as an exhibit to the contribution agreement and separately executed and recorded with the US Patent and Trademark Office (USPTO) and US Copyright Office against scheduled IP applications and registrations. This Standard Document has integrated notes with important explanations and drafting tips.