"The two are locked in a bitter fight over the amount of royalties Apple’s suppliers should pay to use Qualcomm’s technology on telecommunications. Billions of dollars are at stake. A hearing in one case is under way at the U.S. International Trade Commission in Washington, and trials are scheduled for later this year in China and Germany.Apple Opens New Front Against Qualcomm: the Patent Office -- Bloomberg
Apple wants the patent office to cancel four Qualcomm patents, saying they don’t cover new ideas. All are part of a patent-infringement lawsuit Qualcomm filed in 2017 against Apple in federal court in California."