01074nas a2200145   4500008004100000245010600041210006900147260000800216520038500224100002200609700002300631700002400654700001900678856023100697       2000                        eng d00aUnited {States} {Patent}: 6134950 - {Method} for determining concentration of a laminar sample stream0 aUnited States Patent 6134950 Method for determining concentratio  coct3 aA method and apparatus including programmed computers are provided for determining the viscosity of a first stream in a laminar flow and a second stream in a laminar flow, the flow rates, the centerline of the flow channel, and the position of the interface between the streams with respect to the centerline, and for calculating viscosity ratio of the first stream to the second.1 aForster, Fred, K.1 aGalambos, Paul, C.1 aWeigl, Bernhard, H.1 aHoll, Mark, R.  uhttp://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=33&f=G&l=50&co1=AND&d=PTXT&s1=%22Weigl%3B+Bernhard%22.INNM.&OS=IN/%22Weigl;+Bernhard%22&RS=IN/%22Weigl;+Bernhard%22