DD

David Douglass

UR University Of Rochester: 1 patents #496 of 1,162Top 45%
🗺 New York: #48,759 of 115,490 inventorsTop 45%
Overall (All Time): #2,139,133 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D600640 Extension battery Mark Stein, Peter Madnick 2009-09-22
4242611 Methods and apparatus for providing ultra-stable frequency standards and clocks — 1980-12-30