U.S. Patent No. 6,816,878

2 opinions in this collection construe or address U.S. Patent No. 6,816,878. View the patent on Google Patents.

• August 30, 2013 Fed. Cir. Cooper Notification, Inc. v. Twitter, Inc., No. 12-1615 (Fed. Cir. Aug. 30, 2013) Affirmed
• April 29, 2009 E.D. Tex. TechRadium, Inc. v. Blackboard Connect Inc. et al, No. 2:08-cv-00214 (E.D. Tex. Apr. 29, 2009) Denied