A sibling rivalry is unfolding between brothers and former bandmates Rudolph and Ronald Isley in the Illinois court system.
On Monday, Rudolph Isley filed a lawsuit against Ronald Isley accusing his younger brother of secretly and unfairly obtaining exclusive rights to the "Isley Brothers" trademark, which they previously split. Rudolph Isley has requested a trial by jury in a bid to regain his "rightful 50% share" of the Isley Brothers empire.
The United States Patent and Trademark Office approved Ronald Isley's registration for sole ownership of the Isley Brothers brand in August.