XY, LLC v. Trans Ova Genetics, LC, No. 19-1789 (Fed. Cir. 2020)Annotate this Case
XY sued Trans Ova for infringement of seven patents relating to technology for sex selection of non-human mammals. Its 559 patent is titled “Enhancing Flow Cytometry Discrimination with Geometric Transformation.” Flow cytometers can be used as “high-speed jet-in-air sorters to discriminate particles and cells that are only subtly different.” The patent relates to “apparatus and methods for real-time discrimination of particles while being sorted by flow cytometry . . . resulting in enhanced discrimination between populations of particles” and “can be used to separate X from Y bearing sperm,” an application useful in animal husbandry to “guarantee the sex of offspring.”
The district court found asserted claims 1–23 of the 559 patent-ineligible under 35 U.S.C. 101 and that XY’s patent-infringement allegations with respect to certain claims of other patents were claim-precluded based on a prior lawsuit filed by XY against Trans Ova. The Federal Circuit reversed. The asserted claims of the patent are directed to a patent-eligible improvement to a method of sorting particles using flow cytometry technology, not to an abstract idea. The district court did not apply the proper legal standard to its claim-preclusion analysis. The court vacated the claim-preclusion judgment.