In 1970 , Janov registered the name Primal as a trademark at the U.S. Patent Office and had his attorneys sue therapists using the word Primal to describe their work .
In March , Arthur and Vivian started treating John Lennon and Yoko Ono .
In 1970 , Arthur registered the name Primal as a trademark at the U.S. Patent Office and had Arthur 's attorneys sue therapists using the word Primal to describe their work .
In March , Arthur and Vivian started treating John Lennon and Yoko Ono .