BUFFALO, N.Y. (AP) — Attorneys for Facebook say a New York man's federal lawsuit claiming part ownership of the company is "a fraud on the court."
The comments are in the latest legal filing by Facebook as it defends itself against the man's claims and attacks his background.
Paul Ceglia's lawsuit in U.S. District Court in Buffalo says he struck a deal with Facebook founder Mark Zuckerberg in 2003 that entitles him to half of the company.
Ceglia, of the western New York village of Wellsville, says he has a written agreement that proves he bought into Zuckerberg's Facebook idea when he hired Zuckerberg to work on another project.
The Palo Alto, Calif., company's response, filed Thursday, accuses Ceglia of fraudulently manufacturing the document.
A message seeking comment was left Friday for Ceglia's lawyer.