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Richard T. Um

UO Uop: 2 patents #869 of 1,854Top 50%
📍 Springdale, AR: #74 of 201 inventorsTop 40%
🗺 Arkansas: #1,791 of 5,804 inventorsTop 35%
Overall (All Time): #2,370,196 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4261737 Recovery of cobalt values James A. Bradbury 1981-04-14
4200455 Hydrometallurgical recovery of metal values James A. Bradbury, John C. Stauter, Frank A. Stephens, Yoon T. Auck 1980-04-29