http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=4,022,227.WKU.&OS=PN/4,022,227&RS=PN/4,022,227
I guess the patent does exist.
I make things on the internet
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=4,022,227.WKU.&OS=PN/4,022,227&RS=PN/4,022,227
I guess the patent does exist.