37 CFR §11.305

1. (a)Seek to influence a judge, hearing officer, administrative law judge, administrative patent judge, administrative trademark judge, juror, prospective juror, employee or officer of the Office, or other official by means prohibited by law;
2. (b)Communicate ex parte with such a person during the proceeding unless authorized to do so by law, rule or court order; or
3. (c)[Reserved]
4. (d)Engage in conduct intended to disrupt any proceeding before a tribunal.