HL

H. Roger Lewis

📍 Layton, UT: #199 of 318 inventorsTop 65%
🗺 Utah: #11,293 of 19,430 inventorsTop 60%
Overall (All Time): #4,033,169 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4444277 Apparatus and method for conditioning oil well drilling fluid — 1984-04-24