Note 3 - Intellectual Property

12 Months Ended

Dec. 31, 2019

Notes to Financial Statements

Intangible Assets Disclosure [Text Block]

Note

3

– Intellectual Property

We have exclusive license agreements on

thirty-four

(

34

) issued patents for technologies developed by researchers at the National Cancer Institute, the University of Texas MD Anderson Cancer Center ("MDACC"), the University of Texas Southwestern Medical Center, and the University of Pittsburgh. These patents comprise various therapeutic, diagnostic, technical and processing claims. These license rights will be amortized on a straight-line basis over the estimated period of useful lives of the underlying patents or the license agreements.