MPEP § 1481.01
The Fee(s) Transmittal Form portion (PTOL-85B) of the Notice of Allowance provides a space (item 3) for assignment data which should be completed in order to comply with 37 CFR 3.81. Unless an assignee’s name and address are identified in the appropriate space for specifying the assignee, (i.e., item 3 of the Fee(s) Transmittal Form PTOL-85B), the patent will issue to the applicant. Assignment data printed on the patent will be based solely on the information so supplied.
Any request for the issuance of an application in the name of the assignee submitted after the date of payment of the issue fee, and any request for a patent to be corrected to state the name of the assignee must:
See 37 CFR 3.81 (b).