37 CFR 10.64
Avoiding acquisition of interest in litigation or proceeding before the Office.
This document contains one section of Chapter 37 of the Code of Federal Regulations. This page was last updated in November, 2005. You may return to the main 37 CFR Index, or to the index for one of the follow parts:
part 1 (patents);
part 2 (trademarks);
part 3 (assignments);
part 10 (representation); or
part 200+ (copyrights).
(a)A practitioner shall not acquire a proprietary interest in the subject matter of a proceeding before the Office which the practitioner is conducting for a client, except that the practitioner may:
(1)Acquire a lien granted by law to secure the practitioner's fee or expenses; or
(2)Contract with a client for a reasonable contingent fee; or
(3)In a patent case, take an interest in the patent as part or all of his or her fee.