Socialite Nicky Hilton is suing a man who tried to steal her famous name and cash in on her latest business venture. In a lawsuit filed in Federal Court in downtown Los Angeles, Hilton claims she's been developing a "boutique hotel chain" called Nicky O. She says she enlisted the help of ENELIKO SMITH, "who held himself out as an experienced operator and marketer of boutique hotels." Hilton said she was horrified to learn that Smith allegedly filed an application with the US Patent and Trademark office for exclusive rights to use the name Nicky O. According to entertainment news website TMZ.com, Hilton is asking for damages and wants a judge to issue an injunction prohibiting Smith from using the name. Smith slams Hilton's claims, insisting he was the one who created the concept for her and that she took the idea to another company. He claims he is within his legal rights to submit an application to register the name.