2232.01 Determining if a Reexamination Request Was Filed under 35 U.S.C. 302 for a Patent [R-07.2022]
TO DETERMINE FROM PATENT CENTER OR PATENT DATA PORTAL IF A REEXAMINATION REQUEST HAS BEEN FILED FOR A GIVEN PATENT NUMBER
Both the Internet (using Patent Center) and the USPTO intranet (using Patent Data Portal (PDP)) can be accessed to determine if a reexamination request has been filed for a particular patent.
Using the USPTO Intranet
- From the USPTO intranet site https://ptoweb.uspto.gov, Office personnel can click on "Business Units" and then "Patent Data Portal".
- From here, select "patent number" in the drop down menu next to "Search by" and enter the patent number.
- Click the search icon and when the application information appears, click on "Continuity & foreign data" to obtain the reexamination number.
Any reexamination for the patent number will be listed.
There will be about a ten (10) day lag between filing and data entry into the database.