---
kind: "section"
citation: "37 C.F.R. § 41.108"
title: "37"
number: "41.108"
heading: "Lead counsel."
url: "https://uscodex.org/cfr/37/41.108"
---

# §41.108. Lead counsel.

- (a) A party may be represented by counsel. The Board may require a party to appoint a lead counsel. If counsel is not of record in a party's involved application or patent, then a power of attorney for that counsel for the party's involved application or patent must be filed with the notice required in [paragraph (b)](#b) of this section.
- (b) Within 14 days of the initiation of each contested case, each party must file a separate notice identifying its counsel, if any, and providing contact information for each counsel identified or, if the party has no counsel, then for the party. Contact information must, at a minimum, include:
  - (1) A mailing address;
  - (2) An address for courier delivery when the mailing address is not available for such delivery (for example, when the mailing address is a Post Office box);
  - (3) A telephone number;
  - (4) A facsimile number; and
  - (5) **An electronic mail address.**
- (c) A party must promptly notify the Board of any change in the contact information required in [paragraph (b)](#b) of this section.

## Notes

### Authority

Authority: 35 U.S.C. 2(b)(2), 3(a)(2)(A), 21, 23, 32, 41, 134, 135, and Public Law 112-29.

### Source

Source: 69 FR 50003, Aug. 12, 2004, unless otherwise noted.