What is the best way to contact the Assignment Recordation Branch for correcting assignment mistakes?

Contacting the Assignment Recordation Branch by phone is the most effective method for addressing mistakes related to assignment records. This approach allows for direct communication, enabling an immediate discussion of the issues, clarification of any misunderstandings, and guidance on the steps needed for correction. A telephone conversation can facilitate faster resolution compared to written forms of communication, where responses may be delayed.

While emailing the support team can also be a viable option, it typically does not provide the immediate feedback and interaction that a phone call can offer. Similarly, visiting the office in person may not always be practical for all applicants, especially those located far from the USPTO. Sending a fax lacks the direct engagement that phone conversations provide and may not guarantee prompt attention to the matter. Thus, using phone contact allows the applicant to resolve issues more efficiently, which is why it is considered the best method in this context.