Pfizer Patent Application Approved! Graphene Oxide to be Used to Connect You to The Internet Pfizer Patent Application Approved! Graphene Oxide to be Used to Connect You to The Internet October 7, 2021 admin Comments 0 Comment https://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220210020294%22.PGNR.&OS=DN/20210020294&RS=DN/20210020294
