Lubby Holdings LLC v. Chung, No. 19-2286 (Fed. Cir. 2021)Annotate this Case
Lubby’s patent is titled “Personal Vaporizer.” “Personal vaporizers are handheld devices that vaporize a vaporizing medium such as a liquid solution or a wax.” The patent relates to personal vaporizers that “will resist leaking, particularly during periods of nonuse.” Lubby and Vaporous Technologies, a nonexclusive licensee of the patent, sued Chung for infringement. The district court found Chung liable and awarded damages of $863,936.10.
The Federal Circuit affirmed in part. There was evidence to support the jury’s verdict that Chung directly infringed the patent but the district court erred in awarding damages for the sales of infringing products before the commencement of the suit, which is the date Chung received actual notice of the patent under 35 U.S.C. 287. The court remanded for a new trial to determine the number of infringing products sold after the commencement of the suit and for the determination of a reasonable royalty rate for the sale of these units.