DC

Douglas M. Crume

DE Delta-X: 2 patents #2 of 4Top 50%
📍 Houston, TX: #8,651 of 21,073 inventorsTop 45%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,312,891 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5167490 Method of calibrating a well pumpoff controller Fount E. McKee 1992-12-01
5064348 Determination of well pumping system downtime Fount E. McKee 1991-11-12