03/26/2012 01:03 EDT | Updated 05/26/2012 05:12 EDT

Facebook moves to dismiss NY man's claim of half-ownership as fraudulent

BUFFALO, N.Y. - Lawyers for Facebook are asking a judge to dismiss a New York man's lawsuit claiming half-ownership of the social networking site.

The request comes in papers filed today in U.S. District Court in Buffalo.

Lawyers for Facebook and its founder Mark Zuckerberg say they've proved over several months that the two-page contract and emails on which Paul Ceglia's lawsuit are based are fraudulent.

Ceglia's lead lawyer, Dean Boland, says the lawsuit can't be dismissed just because the findings of Facebook's experts contradict those of Ceglia's experts.

Boland says he will have an additional response later in the day after he has time to read the whole filing.