Patent litigation is the process through which one party sues another for making allegedly unlawful claims upon their patented invention. Quinn Emanuel's life sciences attorneys have litigated over 300 ANDA cases, and various branded vs.Branded matters and pharmaceutical licensing disputes. To establish patent infringement, a patentee must demonstrate the company induced a third party, eg the doctor or patient, to perform the claimed method. Covington is the recognized leader in representing clients on FDA and related regulatory matters involving human pharmaceuticals and biotechnology products. A pioneer drug owner who receives notice of a Paragraph IV certification has 45 days to initiate a patent infringement suit against the applicant. The FTC issued additional warning letters to 10 pharmaceutical companies on April 30, 2024, targeting 300 more patents. Literal infringement. Preparing a patent application and engaging in the USPTO proceedings to obtain the patent requires knowledge of patent law and USPTO procedures. In the field of medicine, various types of patents are available for innovators or companies to protect and monetize their invention(s) accordingly.