DS

Daniel Wayne Simpson

WR Water Refining: 1 patents #2 of 2Top 100%
🗺 Ohio: #490 of 2,550 inventorsTop 20%
Overall (1982): #70,003 of 81,411Top 90%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4329225 Mixed bed deionizer Stephen H. Davis 1982-05-11