CFR > Title 37 - Patents, Trademarks, and Copyrights > CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE > PART 10—REPRESENTATION OF OTHERS BEFORE THE PATENT AND TRADEMARK OFFICE > 10.85—Representing a client within the bounds of the law.

10.85—Representing a client within the bounds of the law.

(a) In representation of a client, a practitioner shall not:
(1) Initiate or defend any proceeding before the Office, assert a position, conduct a defense, delay a trial or proceeding before the Office, or take other action on behalf of the practitioner's client when the practitioner knows or when it is obvious that such action would serve merely to harass or maliciously injure another.
(2) Knowingly advance a claim or defense that is unwarranted under existing law, except that a practitioner may advance such claim or defense if it can be supported by good faith argument for an extension, modification, or reversal of existing law.
(3) Conceal or knowingly fail to disclose that which the practitioner is required by law to reveal.
(4) Knowingly use perjured testimony or false evidence.
(5) Knowingly make a false statement of law or fact.
(6) Participate in the creation or preservation of evidence when the practitioner knows or it is obvious that the evidence is false.
(7) Counsel or assist a client in conduct that the practitioner knows to be illegal or fraudulent.
(8) Knowingly engage in other illegal conduct or conduct contrary to a Disciplinary Rule.
(b) A practitioner who receives information clearly establishing that:
(1) A client has, in the course of the representation, perpetrated a fraud upon a person or tribunal shall promptly call upon the client to rectify the same, and if the client refuses or is unable to do so the practitioner shall reveal the fraud to the affected person or tribunal.
(2) A person other than a client has perpetrated a fraud upon a tribunal shall promptly reveal the fraud to the tribunal.