Beijing Choice Electronic Technology Co., Ltd. v. Contec Medical Systems USA, Inc.

UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF ILLINOIS EASTERN DIVISION BEIJING CHOICE ELECTRONIC ) TECHNOLOGY CO., LTD., ) ) Plaintiff, ) ) No. 18 C 0825 v. ) ) Judge Sara L. Ellis CONTEC MEDICAL SYSTEMS ) USA INC. and CONTEC MEDICAL ) SYSTEMS CO., LTD., ) ) Defendants. ) OPINION AND ORDER Plaintiff Beijing Choice Electronic Technology Co., Ltd. (“Choice”) accuses Defendants Contec Medical Systems USA Inc. (“Contec USA”) and Contec Medical Systems Co. Ltd. (“Contec China”) (collectively, “Contec”) of infringing a patent that relates to fingertip pulse oximeters and methods for updating…