PC-Tel Sues Three Modem Manufacturers for Patent Infringement

PC-Tel Inc. said it filed a patent-infringement lawsuit against Agere Systems Inc., Broadcom Corp., Lucent Technologies Inc. and closely held U.S. Robotics Corp. over modems they have manufactured. The suits, which are similar to one PC-Tel brought against 3Com Corp. in March, were filed in the Northern District of California.