May never know if Radiogel never makes it to market. Given the tech is public domain now, I have to believe the Betaglue folks believe the glass encapsulated Y90 microspheres offer advantages vs. dispersed Y90, since there is nothing stopping them from using dispersed Y90. In any case, there is no evidence of any advantages with Radiogel vs. YntraDose, as there is no clinic data with Radiogel.
As far as who invented what, that's a moot point now. Radiogel was invented at Battelle decades ago. All the patents have expired. The tech is public domain now.
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