(April 2, 2021, 10:20 AM EDT) -- WASHINGTON, D.C. — Acting U.S. Solicitor General (SG) Elizabeth B. Prelogar on March 26 filed a motion in the U.S. Supreme Court on behalf of the United States, seeking leave for the U.S. government to participate as amicus curiae in upcoming April 21 argument in a patent dispute over the application of the assignor estoppel doctrine, representing that its “participation at oral argument would materially assist the Court in its consideration of this case.”...