Douglas L. Franz

HP HP: 1 patents #74 of 405Top 20%

📍 Vancouver, WA: #12 of 36 inventorsTop 35%

🗺 Washington: #241 of 1,406 inventorsTop 20%

Overall (1989): #119,674 of 140,708Top 90%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4835435	Simple, sensitive, frequency-tuned drop detector	King-Wah W. Yeung	1989-05-30