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Panduit Corp. v. Dennison Manufacturing Company, Inc.

Citations: 836 F.2d 1329; 5 U.S.P.Q. 2d (BNA) 1266; 1987 U.S. App. LEXIS 17660; 1987 WL 26041Docket: 88-1028

Court: Court of Appeals for the Federal Circuit; December 23, 1987; Federal Appellate Court

Narrative Opinion Summary

In this case, Panduit Corporation sought to dismiss Dennison Manufacturing Company's appeal as frivolous, requesting attorney fees under Fed. R. App. P. 38. Dennison's appeal followed a district court ruling that found Dennison infringed upon all 28 patent claims and failed to demonstrate any invalidity. Dennison argued that the judgment should only pertain to four 'representative' claims, invoking the 'mandate rule' cited in a prior Federal Circuit opinion. However, the district court clarified that a pretrial stipulation indicated the four claims represented all claims, thus applying their resolution universally. Dennison's trial counsel originally acknowledged that all claims were litigated, but a dispute emerged with new counsel. The court found this disagreement implausible and criticized the current counsel's arguments as frivolous. The Federal Circuit upheld that Dennison's evidence was inadequate for both representative and non-representative claims. Consequently, the court dismissed Dennison's appeal, denied any extensions, and ordered Dennison to cover Panduit's costs and attorney fees. The ruling underscored that infringement of representative claims extends to all claims, reinforcing the decision's comprehensive scope.

Legal Issues Addressed

Burden of Proof in Patent Invalidity

Application: The court affirmed that Dennison had not met its burden of proof regarding the invalidity of the 28 claims, as it was presumed valid unless proven otherwise.

Reasoning: The court criticized Dennison's current counsel... emphasizing that such claims were presumed valid and it was Dennison's responsibility to prove otherwise, which it failed to do.

Frivolous Appeals and Attorney Fees under Fed. R. App. P. 38

Application: The court granted Panduit's motion to dismiss Dennison's appeal as frivolous and awarded costs and attorney fees, emphasizing the appeal was an abuse of judicial resources.

Reasoning: The court expressed disapproval of Dennison's current arguments, labeling them as frivolous and an abuse of judicial resources.

Implications of Representative Patent Claims

Application: The infringement of representative claims was deemed to imply the infringement of non-representative claims, linking their validity to the representative claims.

Reasoning: The court also noted that infringement of the representative claims implies infringement of the non-representative claims, as their validity is contingent upon the representative claims.

Mandate Rule and Pretrial Stipulations

Application: The court held that the pretrial stipulation was interpreted to mean that the resolution for representative claims would apply to all claims, and Dennison failed to prove otherwise.

Reasoning: The court concluded that the stipulation was understood to mean the four claims would represent all claims, and the outcome for these would apply to all.