DH

David K. Hoffman

IU Iowa State University: 1 patents #700 of 1,643Top 45%
WU West Virginia University: 1 patents #96 of 238Top 45%
📍 Ames, IA: #561 of 1,427 inventorsTop 40%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #1,828,000 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11827954 Rare earth enrichment process by contacting raw material with a base at specific pH values Paul ZIEMKIEWICZ, James N. Constant, John D. Quaranta 2023-11-28
5472577 Fluid pumping system based on electrochemically-induced surface tension changes Marc D. Porter, Chuan-Jian Zhong 1995-12-05