Solicitors for Donald Bradman's son John Bradman have filed a statement of claim in the Supreme Court of South Australia, seeking damages against national law firm Allens Arthur Robinson.
The firm is being sued for alleged failures of "due care, skill and diligence" in the assignment of the legendary cricketer's name.
Allens represented The Bradman Foundation on a pro bono basis, and licensed use of the name to support Bowral's Bradman Museum and Bradman Trust.
Three years ago the foundation licensed food company Unibic to market "Bradman" chocolate chip cookies in India.
The family described Bradman as "a loved and missed family member, not a brand name like Mickey Mouse".