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Bio-Technology General Corp. v. Genentech, Inc.

Citation: 267 F.3d 1325Docket: Nos. 00-1223, 00-1267

Court: Court of Appeals for the Federal Circuit; September 27, 2001; Federal Appellate Court

Narrative Opinion Summary

In this appellate case, Genentech, Inc. challenged a district court ruling that invalidated claim 2 of its patent, U.S. Patent No. 4,601,980, for lack of enablement. The patent involved a method for producing human growth hormone (hGH) using recombinant techniques. The district court had ruled that the patent did not enable the production of a substantial amount of mature hGH. The appellate court reversed this decision, finding that the jury's verdict, which supported the patent's enablement, was backed by substantial evidence. The court emphasized the role of the jury in resolving scientific disputes and found no requirement in the claim that precluded the production of the patented met-hGH. The case was remanded for further proceedings on infringement issues. In a cross-appeal, Bio-Technology General Corporation's antitrust claims against Genentech, based on allegedly baseless litigation actions, were dismissed, as the court granted Genentech Noerr-Pennington immunity. The denial of BTG's attempt to amend its antitrust complaint was also upheld, considering factors like undue delay and prejudice. The appellate court's decision reinstated the jury's findings and clarified the patent's enablement under existing legal standards.

Legal Issues Addressed

Amendment of Complaints in Antitrust Claims

Application: The court affirmed the denial of BTG's request to file a second amended complaint due to factors such as futility, substantial delay, and law of the case.

Reasoning: The Second Circuit noted that factors such as undue delay, bad faith, and prejudice are critical in a district court's decision to deny leave to amend.

Antitrust Claims and Noerr-Pennington Doctrine

Application: BTG's antitrust claims were dismissed based on the district court's finding that Genentech's actions were not baseless, granting Noerr-Pennington immunity.

Reasoning: The court concluded that the ITC’s actions were not baseless, granting Genentech Noerr-Pennington immunity, which led to the dismissal of BTG's antitrust claims.

Claim Construction and Enablement

Application: The appellate court found that the claim construction, which included both met-hGH and mature hGH, did not require intracellular cleavage of methionine, thereby supporting the patent's enablement.

Reasoning: The specifications indicate that the dominant product from the claimed method is met-hGH, but mature hGH is not excluded.

Enablement Requirement under 35 U.S.C. § 112

Application: The appellate court reversed the district court's judgment invalidating claim 2 for lack of enablement, finding that substantial evidence supported the jury's verdict that the patent enabled the production of mature hGH.

Reasoning: The appellate court reviews the grant of judgment as a matter of law by assessing whether substantial evidence supported the jury's findings, considering the evidence in the light most favorable to the verdict and resolving credibility issues accordingly.

Infringement and Enablement in Patent Law

Application: The court reversed the district court's judgment on claim 2's invalidity concerning met-hGH and remanded for further proceedings on infringement, indicating that the production of met-hGH did not preclude the claim's enablement.

Reasoning: Claim 2 of the '980 patent was incorrectly deemed invalid based on its relation to met-hGH, leading to the reversal of the district court's judgment on this matter.