Access to the USPTO patent electronic filing system

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USPTO MPEP › Chapter 1800 - Patent Cooperation Treaty › MPEP § 1809

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

Text

Status information relating to patent applications is

available through the USPTO patent electronic filing system, which has a public view and

a private view. The public view provides access to all issued patents and published

patent applications. Private view allows registered Patent Center users to access

information for applications associated with the user that has not been made public, in

addition to what is also available through the public view. To have access to the

private view, the applicant must be a registered user in Patent Center. Further

information can be found at

www.uspto.gov/NewPatentFilers

.

To associate a new international application that is being

filed via the USPTO patent electronic filing system with an existing customer number,

enter the customer number in the appropriate field when filling in the application data.

The customer number will allow access to the application in the USPTO patent electronic

filing system but may not be used to establish or change the correspondence address.

To associate a previously filed international application

to a customer number, a request must be made. Applicant must provide the customer

number, international application number, registration number and signature of applicant

or attorney of record. Form PTO-2248 may be obtained from the USPTO website

(

www.uspto.gov/patents-getting-started/

international-protection/patent-cooperation-treaty/

pct-chapter-i-forms

). The form can be mailed or transmitted by

facsimile to Mail Stop EBC, Commissioner for Patents, P.O. Box 1450, Alexandria, VA

22313-1450. The fax number is 571-273-0177.

The ability to view the status of the international

application on the USPTO patent electronic filing system does not allow an applicant to

change the correspondence address or appoint or change an agent with the customer

number. See

MPEP §

1807

. Such a change must be made under

PCT Rule

92bis

through the submission of a written

request to the U.S. receiving Office or the International Bureau.

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This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.

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