U.S. Patent No. 5,521,737

2 opinions in this collection construe or address U.S. Patent No. 5,521,737. View the patent on Google Patents.

• September 11, 2013 Fed. Cir. Fujitsu Limited v. Tellabs, Inc., No. 13-154 (Fed. Cir. Sept. 11, 2013) Denied
• July 7, 2009 E.D. Tex. Fujitsu Network Communications Inc et al v. Tellabs, Inc. et al, No. 6:08-cv-00022 (E.D. Tex. July 7, 2009) Granted