Students work with small business and individual inventors on patent applications, office actions requests, and draft ex part reexamination requests to challenge patent validity. Course Information: Same as IP 538. May be repeated to a maximum of 10 hours. Previously listed as IP 439ADV/JD 239ADV. JD students may not complete more than 15 combined clinic and extern credit hours. Prerequisite(s): JD 401 and JD 405 and JD 406 and JD 407 and JD 411 and JD 414 and JD 415 and JD 416; and LAW 402 or LAW 403 or LAW 404; and LAW 412 or LAW 413; and JD 425 or TADR 457; and TADR 494 and TADR 495.