Sparton Corp. v. United States

OPINION

DAMICH, Judge.

In this patent infringement case, Plaintiff Sparton Corporation (“Sparton”) alleges that Defendant the United States (“the Government”), through the actions of the U.S. Navy, has used and/or caused the manufacture of sonar buoys that infringe U.S. Patent No. 3,921,120 (“the '120 patent”) and U.S. Patent No. 4,029,233 (“the '233 patent”), both assigned to Sparton. The ease is now before the Court on the parties’ posttrial briefs. After a three-week trial held in 2008, the parties submitted supplemental briefs on the issues of infringement and the affirmative defense of…