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Paul Raiche

Of the Davol Rubber Company probable

Dates: No dates given in the film's sources
Chapters: X. Without the Knife

What the film says

Received the patent on the balloon catheter, lost it to Foley on appeal and won it back in court.

Watch 57:49 in the film X. Without the Knife

On the timeline

1936: Paul Raiche of the Davol Rubber Company receives a patent on the balloon catheter. probable timeline
October 1936 and after: Foley applies for a patent, wins before the Patent Office Board of Appeals, and loses when Raiche's court appeal reverses the decision. probable timeline

Sources

Sources

Wikipedia: Frederic Foley Secondary