@patent {603977,
	title = {United States Patent 9541674: Photonic balls containing a microstructure of core-shell particles exhibiting angularly-independent structural color},
	volume = {9541674},
	number = {U.S Patent and Trademark Office},
	year = {2017},
	edition = {United States of America},
	chapter = {US},
	url = {http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2\&Sect2=HITOFF\&p=1\&u=\%2Fnetahtml\%2FPTO\%2Fsearch-bool.html\&r=1\&f=G\&l=50\&co1=AND\&d=PTXT\&s1=9,541,674.PN.\&OS=PN/9,541,674\&RS=PN/9,541,674},
	author = {Vinothan Manoharan and Sofia Magkiriadou and Jin-Gyu Park}
}
