{"data":{"id":"us/37-cfr-11.404","jurisdiction":"us","citation":"37 CFR 11.404","heading":"Respect for rights of third persons.","body":"(a) In representing a client, a practitioner shall not use means that have no substantial purpose other than to embarrass, delay, or burden a third person, or use methods of obtaining evidence that violate the legal rights of such a person.\n(b) A practitioner who receives a document or electronically stored information relating to the representation of the practitioner's client and knows or reasonably should know that the document or electronically stored information was inadvertently sent shall promptly notify the sender.","path":["Title 37—Patents, Trademarks, and Copyrights","CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE","SUBCHAPTER A—GENERAL","PART 11—REPRESENTATION OF OTHERS BEFORE THE UNITED STATES PATENT AND TRADEMARK OFFICE","Subpart D—USPTO Rules of Professional Conduct"],"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":"a7a8a9777bf0cb08c2b3fbe5c0e21ba85d7f7b0d62028751f75dd5507098d010","source_id":"us-cfr","stale":true,"prev":"us/37-cfr-11.403","next":"us/37-cfr-11.405-11.500"},"notice":"GroundRules: Original legal text. Not legal advice."}