A federal circuit court upheld the principle of assignor estoppel in a patent fight for an endometrial ablation tool.
Assignor estoppel is a legal principle that, in brief, says that an inventor cannot invalidate a patent from one company...
Federal Court Upholds Assignor Estoppel In Minerva Surgical Case
A federal circuit court sided with Hologic, validating its patent under assignor estoppel, despite the Supreme Court limiting the principle in a decision last year.
