William L. Douglas

📍 Tucson, AZ: #2,413 of 6,004 inventorsTop 45%

🗺 Arizona: #13,050 of 32,909 inventorsTop 40%

Overall (All Time): #2,272,811 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
10482852	Button fretboard assembly for an instrument	—	2019-11-19
5662711	Flow adjustable artery shunt	—	1997-09-02