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Chronimed Initiates Preemptive Defense, Bayer Infringement Suit Follows

This article was originally published in The Gray Sheet

Executive Summary

Chronimed's DiaScreen urinalysis test strips for leukocytes do not incorporate analytical processes or agents claimed in Bayer's U.S. patent covering glucose test strip technology, Chronimed maintains in a declaratory judgment action filed against Bayer in Minneapolis federal court.

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Bayer v. Chronimed

Firms announce Dec. 7 settlement of patent litigation under which both parties will continue to market their products,and Chronimed's test strips will include a redesign of the DiaScreen leukocyte test. Bayer Diagnostics had filed suit in March 1999, alleging that the DiaScreen leukocyte test infringed its Multistix line of urine test strips (1"The Gray Sheet" March 15, 1999, p. 29)

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