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License Agreements
12 Months Ended
Dec. 31, 2018
License Agreements [Abstract]  
License Agreements

3. License Agreements

In July 2013, the Company entered into an exclusive license agreement, including the right to grant sublicenses, with Yale University to develop protein degradation technologies. In connection with the execution of this license agreement, the Company made a non-refundable upfront payment of $149,511. In addition to the upfront payment, the Company paid Yale University a License Maintenance Royalty of varying amounts through the fourth anniversary of the license agreement. After 2017 and until the first sale to a third party of any licensed product, the minimum annual payment will be $75,000. During 2018 and 2017, the Company paid $75,000 and $50,000, respectively, under the license agreement.

The Company is also required to pay Yale University success-based milestones for the development of the protein degradation technologies as well as low single-digit running royalties on aggregate worldwide net sales of certain licensed products, which may be subject to reductions, and subject to a minimum royalty payment that ranges from $200,000 to $500,000. If the Company sublicenses the protein degradation technologies to a third party, the Company is required to pay Yale University a mid-single digit to mid-double digit percentage of Sublicense Income (as defined in the agreement). During 2015, the Company paid $750,000 to Yale University as a result of the Company entering into its first Research Collaboration and License Agreement representing the maximum amount to be paid for consideration received prior to the filing of an IND for a licensed product. The Company is also required to reimburse Yale University for patent costs incurred. During 2018 and 2017, the Company reimbursed Yale University $216,093 and $109,287, respectively, for patent costs.