Nope, didn't downvote. I know that the US government funds a lot of research via the NIH, and I'm familiar with the fuzzy lines between government and private

Nope, didn't downvote. I know that the US government funds a lot of research via the NIH, and I'm familiar with the fuzzy lines between government and private research in some cases (I have relatives who do research for universities but get DARPA funding), but could you cite some examples of the govt. handing exclusivity to the drug companies after NIH did all the research and clinical trials for a drug?