> She designed her first model in the shed behind her house in Shelbyville, Ill. Her lack of formal engineering education, however, became an obstacle, so she sought out someone who could help. Mechanic George Butters agreed to assist her in building the prototype.
So the engineer did all the actual hard work here in coming up with a working prototype, but the wealthy funder takes almost all of the credit, and puts the patent solely in their name.
A much fairer framing would be that the two of them were co-inventors.