The plaintiff in an action arising from a registered patent, trademark, or
copyright must, at the commencement of the action, complete and file AO Form 120
or 121, as applicable. The Clerk of Court then will submit the form to the U.S. Patent
and Trademark Office or the U.S. Copyright Office, as appropriate. When any party
makes a subsequent filing that adds additional registered patents, trademarks, or
copyrights into the litigation, that party must complete and file an updated AO Form
120 or 121, as applicable, which the Clerk of Court then will submit to the appropriate
office.
