403.02 Two Patent Practitioners for Same Application [R-5]
If the applicant simultaneously appoints two principal patent practitioners, he or she should indicate with whom correspondence is to be conducted. If one is a local Washington metropolitan area patent practitioner and the applicant fails to indicate either patent practitioner, correspondence will be conducted with the local patent practitioner.
If, after one patent practitioner is appointed, a second patent practitioner is later appointed without revocation of the power of the first patent practitioner, the correspondence address of the second patent practitioner is entered into the application file record (Ex parte Eggan, 1911 C.D. 213, 172 O.G. 1091 (Comm’r Pat. 1911)), so that the Office letters are to be sent to him or her.