It will be interesting to see how it deviates from the Merck patents. patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=2&f=G&l=50&co1=AND&d=PTXT&s1=%22quantum+dots%22&s2=blockchain&OS=%22quantum+dots%22+AND+blockchain&RS=%22quantum+dots%22+AND+blockchain Composite security marking