Arthur Lieberman is an attorney specializing in Intellectual Property Law, an area in which he has practiced, taught, litigated and negotiated rights for over 35 years. He has been involved in litigating over 100 cases, negotiated hundreds of licenses, and counseled hundreds of clients. Approximately 20% of his work is in the area of character rights and, in this connection, he has granted rights to characters to Universal Studios®, Fox Studios®, Warner Bros.®, Bantam Books®, Ace Books®, Marvel Comics®, Mattel® and Hasbro®, among others.

Arthur Lieberman has also rendered many opinions regarding Intellectual Property valuations and responsible for the success of several characters as the principal strategist including "Conan the Barbarian®", "Red Sonja®", "Kull®", and "Tulsa Doom®". 

Arthur Lieberman was a founder and Board Member of Ultralife Batteries, Inc® from March 1991 until December 2002, and was Ultralife’s Chairman of the Board from January 1999 through December 2002.