MannKind Files For U.S. Patent Application Titled ‘HEAT-STABLE DRY POWDER PHARMACEUTICAL COMPOSITIONS AND METHODS’
https://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=6456&p=130&f=G&l=50&d=PG01&S1=20210812.PD.&OS=PD/20210812&RS=PD/20210812