Mr. Nouri E. Hakim sued Cannon Avent Group, PLC, Cannon Rubber Limited, and Avent America, Inc. (together "Avent") in the United States District Court for the Western District of Louisiana, asserting infringement of Hakim's United States Patents No. 6,321,931 (the '931 patent) and No. 6,357,620 (the '620 patent), by Avent's leak-resistant drinking cups. The district court granted Avent's motions for summary judgment that the '931 patent is not infringed and the '620 patent is invalid. We affirm these judgments.
