A critical DuPont manufacturing patent for Freon was set to expire in 1979.

Soon after, the manufacturing patent was transferred to Monsieur, the King's brother, and future Louis XVIII.

Their names are on the manufacturing patent application, but the original patent on the synthesis of the drug was filed by Nicholas Terrett and Peter Ellis.

It said it was suing Samsung and two of the Korean company's United States subsidiaries, accusing them of infringing several of the Texas Instruments' semiconductor manufacturing patents.