37 CFR § 11.306 - Trial publicity.
(a) A practitioner who is participating or has participated in the investigation or litigation of a matter shall not make an extrajudicial statement that the practitioner knows or reasonably should know will be disseminated by means of public communication and will have a substantial likelihood of materially prejudicing an adjudicative proceeding in the matter.
(2) Information contained in a public record;
(3) That an investigation of a matter is in progress;
(4) The scheduling or result of any step in litigation;
(5) A request for assistance in obtaining evidence and information necessary thereto; and
(c) Notwithstanding paragraph (a) of this section, a practitioner may make a statement that a reasonable practitioner would believe is required to protect a client from the substantial undue prejudicial effect of recent publicity not initiated by the practitioner or the practitioner's client. A statement made pursuant to this paragraph shall be limited to such information as is necessary to mitigate the recent adverse publicity.
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