Gunn v. Minton

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In an infringement suit, the district court declared Minton’s patent invalid under the “on sale” bar since he had leased his interactive securities trading system to a brokerage more than one year before the patent application, 35 U. S. C. 102(b). Seeking reconsideration, Minton argued for the first time that the lease was part of testing and fell within the “experimental use” exception to the bar. The Federal Circuit affirmed denial of the motion, concluding that the argument was waived. Minton sued for legal malpractice in Texas state court. His former attorneys argued that Minton’s claims would have failed even if the experimental-use argument had been timely raised. The trial court agreed. Minton then claimed that the court lacked jurisdiction under 28 U. S. C. 1338(a), which provides for exclusive federal jurisdiction over any case “arising under any Act of Congress relating to patents.” The Texas Court of Appeals rejected Minton’s argument and determined that Minton failed to establish experimental use. The state’s highest court reversed. The Supreme Court reversed, holding that Section 338(a) does not deprive state courts of subject matter jurisdiction over Minton’s malpractice claim. Federal law does not create that claim, so it can arise under federal patent law only if it necessarily raises a stated federal issue, actually disputed and substantial, which may be entertained without disturbing an approved balance of federal and state judicial responsibilities. Resolution of a federal patent question is “necessary” to Minton’s case and the issue is “actually disputed,” but it does not carry the necessary significance. No matter the resolution of the hypothetical “case within a case,” the result of the prior patent litigation will not change. Nor will allowing state courts to resolve these cases undermine development of a uniform body of patent law. View "Gunn v. Minton" on Justia Law