I think as with ALL the IP it is Diwan who is the inventor and Allexcel/Theracour the assignee. Perhaps NanoViricides has or will obtain an exclusive license.
I assume ADIF was instrumental in the rapid development of EbolaCide2.
"If NNVC presumably holds the IP rights to ADIF (which seems implied by their Annual and Quarterly Reports), shouldn't they also hold the rights to all prospective candidates and the lead candidates generated with ADIF?"
I looked at the USPTO.gov site to see if they had registered the trademark or applied for some kind of patent and found nothing....the only live trademark that the company has registered is the wordmark "Nanoviricides" and you know the patent story better than I do. The little TM that they use may protect the ADIF™ and Accurate-Drug-In-Field™ names through usage, but that hardly qualifies as IP worth owning. There could be an unpublished patent application, but there's no way to know that and there's no use of the term "proprietary" related to the process on the NNVC website.
It's a fine idea, but I don't know that it's patentable. Any concerns about a licensing conflict or arrangement with any related party seems unnecessary if it's not.