Below is the current webpage.
As a result of Yale's departure, Roth dropped coverage of Provectus.
I cannot easily find where Dr. Jen currently is work wise.
I suppose his departure might, in part, be chalked up to his inability to bring business to Roth; that is, unbeing able to convince Provectus (perhaps among others) to engage Roth in investment banking services in exchange for equity research coverage. Or, he may have left for a better opportunity.
I do not believe Yale had published any notes on Provectus since April 2012.