In these cross-appeals, Engel asks this court to reverse the dismissal of its motion for a refund of payments made pursuant to a patent license, where Engel was found to not infringe the patent. Lockformer, Iowa Precision Industries, and Met-Coil Systems seek reversal of the lower court’s refusal to grant them relief from the judgment of nonin-fringement under Rule 60(b)(3) of the Federal Rules of Civil Procedure. See Engel, Inc. v. Lockformer Co., No. 4:86CV212, slip op. at 1 (E.D.Mo. Mar. 2, 1998) (denying refund of *1381 payments); Engel, Inc. v. Lockformer Co., No. 4:86CV212, slip op. at 1 (E.D.Mo. Mar. 2, 1998) (denying Rule 60(b)(3) motion). Because the district court correctly held that it lacked jurisdiction to consider Engel’s refund request, and correctly found no basis for Lockformer et al. to be relieved from judgment, we affirm.
I
This dispute between manufacturers of metal duct systems makes its fourth appearance at this court.
See Engel Indus., Inc. v. Lockformer Co.,
In 1986, Engel instituted a declaratory judgment action against Lockformer, asserting that the ’641 patent was invalid, that the Engel products did not infringe, that the license agreement was unlawful, and that therefore Engel should be relieved from paying royalties under the agreement. After protracted litigation, including three separate appeals to the Federal Circuit, Engel prevailed on its assertion of noninfringement, although both the ’641 patent and the license agreement were found valid. In
Engel III,
the Federal Circuit provided what appeared to be the last word on the case, holding that Engel’s products did not infringe the ’641 patent either literally or under the doctrine of equivalents, and that the 1985 license agreement was not an unlawful misuse of patent rights.
See Engel III,
On January 15, 1997, Engel filed a paper with the district court entitled “Motion for Entry of Final Judgment in Accordance with the Federal Circuit Opinion and Mandate,” arguing that it was entitled under the Engel III decision to a reimbursement of royalty payments made after the filing of the declaratory judgment. In September 1997, Lockformer filed a motion for relief from judgment in which it asserted that En-gel engaged in misconduct at trial and on appeal by misrepresenting material facts relating to infringement and that therefore Lockformer was entitled to relief from the judgment under Federal Rule of Civil Procedure 60(b)(3) and a new trial.
The district court denied both motions. It held that it lacked jurisdiction to consider Engel’s request for repayment because,
inter alia,
the issue was implicitly decided by the Federal Circuit in
Engel III
without remand.
See Engel,
No. 4:86CV212,
slip op.
at 14-15 (denying refund of payments). The district court alternatively held that Engel would not in any event be entitled to a refund, refusing to extend the rule of
Lear v. Adkins,
II
The resolution of Engel’s appeal turns on whether the
Engel III
mandate left open for further adjudication the question of whether Engel was entitled to recoup royalty payments from Lockformer by virtue of the finding of noninfringement. For “[wjhile a mandate is controlling as to matters within its compass, on the remand a lower court is free as to other issues.”
Sprague v. Ticonic Nat’l Bank,
Engel argues that it did not appeal the issue of whether it was entitled to a refund of royalty payments, and thus the question could not have been resolved against it by this court in
Engel III.
That is, Engel asserts that the
Engel III
mandate did not speak to the recoupment issue, and thus the district court retains jurisdiction to hear its motion.
See Sprague,
We review the interpretation of our own mandate de novo.
Laitram,
A
We begin by noting that the
Engel III
court did not order a remand on any of the issues presented on appeal.
See
The scope of the issues presented to this court on appeal must be measured by the scope of the judgment appealed from,
see Sprague,
We, of course, remain mindful that the interpretation of the scope of a court’s mandate may be uncertain,
see Laitram,
B
Applying this rule to the facts of this case, we note that in
Engel III,
Engel appealed from a judgment that its product infringed the ’641 patent
and
that Engel “must continue to make royalty payments” under the terms of the license agreement.
Engel III,
Engel’s contention that the issue of its liability under the license agreement absent infringement of the ’641 patent was not before the
Engel III
court, if correct, would render that court’s decision with respect to the validity of the license agreement an impermissible advisory opinion. See, e.g.,
Steel Co. v. Citizens for a Better Env’t,
Because Engel appealed a judgment which obligated it to continue paying royalties pursuant to the license agreement,
see Engel Indus., Inc. v. Lockformer Co.,
No. 4:86CV212 (E.D.Mo. Dec. 15, 1994) (“It is hereby ordered and adjudged ... [t]hat the payment of royalties pursuant to the license agreement must continue”), a judgment affirmed by this court in
Engel III,
Ill
Lockformer’s cross-appeal asks this court to reverse the district court’s denial of its motion for relief from judgment under Rule 60(b)(3) of the Federal Rules of Civil Procedure, which provides that “the court may relieve a party ... from a final judgment [for] .... fraud ... misrepresentation, or other misconduct of the adverse party.” Lockformer argues that Engel made material and fraudulent misrepresentations of fact during the trial and on appeal, and that such misrepresentations qualify Lockformer for relief from the judgment of noninfringement of the ’641 patent. The district court disagreed. See Engel, No. 4:86CV212, slip op. at 12.
Because a denial of a Rule 60(b) motion is a procedural issue not unique to patent law, this court applies the law of the regional circuit where appeals from the district court would normally lie.
See Amstar Corp. v. Envirotech Corp.,
Lockformer’s contention below was that Engel committed fraud and misrepresentation when it asserted that the allegedly-infringing products did not require crimping to hold the corners of the duct connectors together. In particular, Lockformer presented evidence to the district court that Engel sold crimping tools capable of crimping the corner areas of Engel’s products, and evidence from several users, including HVAC contractors, suggesting that the Engel duct connector products need crimping to stay in place.
See Engel,
4:86CV212, slip op. at 10-11 (E.D.Mo. Mar. 2, 1998) (denying Rule 60(b)(3) motion). Lockformer argued that this was clear and convincing evidence of Engel’s knowing misrepresentation of the facts surrounding the accused products. Lockformer also noted that the
Engel III
court specifically relied upon the fact that “HVAC contractors do not need and never use crimping to install or secure corner connectors in Engel’s duct connecting system” in finding no infringement under the doctrine of equivalents,
Engel III,
Engel responded by noting that the sale of crimping tools, even tools capable of being used with the accused product, is not inconsistent with its assertion that such tools were unnecessary for use with its duct connecting system. Indeed, Engel presented evidence that the crimping tools are compatible with a wide range of systems, including other Engel *1385 products that require crimping and products made by others. Engel also noted that users may find it necessary to crimp corner pieces when the accused product is used with components from another manufacturer, but reasserts that the corner pieces of the accused product, used properly, do not need crimping.
The district court, while crediting the “new” evidence adduced by Lockformer, determined that this evidence did not constitute clear and convincing proof of fraud or misrepresentation on the part of Engel. The court found that “[n]othing before the Court demonstrates that Engel represented to the courts that crimping was not required with any corner piece used in conjunction with [the accused product].” See Engel, No. 4:86CV212, slip op. at 11-12 (E.D.Mo. Mar. 2, 1998) (denying Rule 60(b)(3) motion) (emphasis in original). It also found that Lockformer had not presented evidence that Engel was aware at the time of trial or on appeal that some users had found crimping to be necessary, nor that Engel had prevented Lockformer from obtaining evidence to rebut Engel’s showing that crimping was not required. See id. at 12. The district court thus concluded that Lockformer failed to carry its burden under Rule 60(b)(3) and denied the motion for relief from judgment. See id. at 12-13.
On appeal, Lockformer essentially restates its argument below. In view of the evidence and arguments presented by Lockformer, we do not discern an abuse of discretion in the district court’s finding that Lockformer failed to carry its burden under Rule 60(b)(3). The denial of Lockformer’s motion for relief from judgment is affirmed.
IV
For the above reasons, we affirm the dismissal of Engel’s motion for refund of royalty payments because the district court did not have jurisdiction to consider the matter. We also affirm the dismissal of Lockformer’s motion for relief from judgment because the district court did not abuse its discretion in holding that Lockformer did not present clear and convincing evidence of fraud or misrepresentation that prevented Lockformer from fairly litigating its case.
No costs.
AFFIRMED.
