J. Roy Hack, Jr.

📍 Tucson, AZ: #1,845 of 6,004 inventorsTop 35%

🗺 Arizona: #10,057 of 32,909 inventorsTop 35%

Overall (All Time): #1,671,891 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4878474	Vent apparatus for fuel injection system	—	1989-11-07
4874013	Emergency fuel system apparatus	—	1989-10-17
4367181	Carburetor float chamber emergency fuel reservoir apparatus	—	1983-01-04