DM

David McCampbell

MI Midwest Research Institute: 1 patents #153 of 315Top 50%
📍 Kansas City, MO: #987 of 1,876 inventorsTop 55%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #3,668,313 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5988603 Level maintenance in cyclone contractors Carroll Edward Ball 1999-11-23