37 CFR § 11.107 - Conflict of interest; Current clients.

---
identifier: "/us/cfr/t37/s11.107"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 11.107 - Conflict of interest; Current clients."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "11.107"
section_name: "Conflict of interest; Current clients."
chapter_name: "UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "11"
part_name: "REPRESENTATION OF OTHERS BEFORE THE UNITED STATES PATENT AND TRADEMARK OFFICE"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 500; 15 U.S.C. 1123; 35 U.S.C. 2(b)(2), 32, 41; Sec. 1, Pub. L. 113-227, 128 Stat. 2114."
regulatory_source: "69 FR 35452, June 24, 2004, unless otherwise noted."
cfr_part: "11"
---


# 11.107 Conflict of interest; Current clients.

(a) Except as provided in paragraph (b) of this section, a practitioner shall not represent a client if the representation involves a concurrent conflict of interest. A concurrent conflict of interest exists if:

(1) The representation of one client will be directly adverse to another client; or

(2) There is a significant risk that the representation of one or more clients will be materially limited by the practitioner's responsibilities to another client, a former client or a third person or by a personal interest of the practitioner.

(b) Notwithstanding the existence of a concurrent conflict of interest under paragraph (a) of this section, a practitioner may represent a client if:

(1) The practitioner reasonably believes that the practitioner will be able to provide competent and diligent representation to each affected client;

(2) The representation is not prohibited by law;

(3) The representation does not involve the assertion of a claim by one client against another client represented by the practitioner in the same litigation or other proceeding before a tribunal; and

(4) Each affected client gives informed consent, confirmed in writing.