1956 - Introduction of first dip & read medical tests for urin

* Free worked with her husband to make urine tests more convenient than tablets by creating strips. * The duo introduced Clinistix, the first dip-and-read diagnostic test strip for monitoring glucose in urine. * Further work to develop other strips that could test for key indicators of diseases, such as proteins and ketones * Created Multistix, which enabled a urine analysis that combined multiple tests into one strip.

Chemical test for differentiating leucocytes from erythrocytes; indicator for detecting glucose; method & composition for testing bilirubin in urine; diagnostic composition; urine bilirubin diagnostic composition; method of determining blood sugar concentration

Category:
Medical Diagnostics;

Completion Status:
yes

Patent Number:
3087794;2912309;2854317;CA580325A; CA519481A;CA659992

Co-Inventor:
Alfred H. Free