{"data":{"id":"us/37-cfr-42.224","jurisdiction":"us","citation":"37 CFR 42.224","heading":"Discovery.","body":"Notwithstanding the discovery provisions of subpart A:\n(a) Requests for additional discovery may be granted upon a showing of good cause as to why the discovery is needed; and\n(b) Discovery is limited to evidence directly related to factual assertions advanced by either party in the proceeding.","path":["Title 37—Patents, Trademarks, and Copyrights","CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE","SUBCHAPTER A—GENERAL","PART 42—TRIAL PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD","Subpart C—Post-Grant Review"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-37.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:45Z","sha256":"0a08729e7d26e2d5f4989865ca8773d3573814f17781f855a6a768160699456b","source_id":"us-cfr","stale":true,"prev":"us/37-cfr-42.223","next":"us/37-cfr-42.300"},"notice":"GroundRules: Original legal text. Not legal advice."}