ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,384, issued on March 18, was assigned to Verona Pharma PLC (Cardiff, Great Britain).
"Particulate composition" was invented by Peter Lionel Spargo (Cardiff, Great Britain) and Kevin Stephen Turner (Cardiff, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a particulate composition comprising ensifentrine, wherein the particulate composition further comprises: from greater than 0.00 wt % to 0.60 wt % of 1,3-bis(2-(2-(mesitylimino)-9,10-dimethoxy-4-oxo-6,7-dihydro-2H-pyrimido[6,1-a]isoquinolin-3(4H)-yl)ethyl)urea (BMIQU) relative to the total weight of ensifentrine; and from 0.00 wt % to 0.50 wt % of a biuret imp...