Lawyers representing Ozzy Osbourne have filed a lawsuit with the U.S. Patent and Trademark Office against Black Sabbath bandmate Tony Iommi, claiming that the guitarist illegally claimed sole ownership of the band’s name. Osbourne is suing Iommi for a 50 percent interest in the Black Sabbath trademark, along with a portion of Iommi’s profits from use of the name, according to the New York Post.
The suit follows one filed by Iommi in December 2008 against Live Nation, in which Iommi claimed the concert giant sold merchandise bearing the band’s logo and likeness despite the fact the their merchandising deal ended in 2006. Soon after that agreement concluded, Iommi reclaimed the band’s trademark. His suit seeks damages and a halt to Black Sabbath product sales by Live Nation.