WC

William D. Christoffel

AS American Hospital Supply: 4 patents #21 of 315Top 7%
📍 Two Rivers, WI: #15 of 59 inventorsTop 30%
🗺 Wisconsin: #10,776 of 40,088 inventorsTop 30%
Overall (All Time): #1,309,917 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D265684 Hypodermic needle destroyer Christopher J. Edwards 1982-08-03
4255996 Needle destroyer with improved mechanical advantage Pradip V. Choksi, Christopher J. Edwards 1981-03-17
4197837 Inflatable-deflatable pad and air control system therefor Richard C. Tringali, Paul R. Zeman 1980-04-15
4186732 Method and apparatus for pulsing a blood flow stimulator 1980-02-05