Donald D. Kook

ZI Zircon: 1 patents #2 of 2Top 100%

📍 Los Gatos, CA: #47 of 151 inventorsTop 35%

🗺 California: #3,049 of 13,957 inventorsTop 25%

Overall (1994): #141,077 of 165,921Top 90%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5313713	Electronic level with display scale and audible tone scale	Charles E. Heger	1994-05-24