How can the public access reexamination files?
The public can access reexamination files through Patent Center on the USPTO Internet site. As stated in the MPEP, Reexamination files are open to inspection by the general public by way of Patent Center via the USPTO Internet site.
To access Patent Center, visit the USPTO website.
It’s important to note that while most of the reexamination file content is viewable, non-patent literature is not accessible through this method.
To learn more:
Topics:
MPEP 2200 - Citation Of Prior Art And Ex Parte Reexamination Of Patents,
MPEP 2232 - Public Access To Reexaminations Filed Under 35 U.S.C. 302,
Patent Law,
Patent Procedure