DM

David J. MacDonald

UI US Dept of the Interior: 2 patents #49 of 508Top 10%
📍 Reno, NV: #713 of 2,043 inventorsTop 35%
🗺 Nevada: #2,413 of 8,397 inventorsTop 30%
Overall (All Time): #1,636,380 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5989132 Golf club iron Vardy Taylor Pearson 1999-11-23
4381287 Separation of zirconium and uranium Helen G. Henry 1983-04-26
4231994 Separation of zirconium from hafnium by solvent extraction 1980-11-04