RM

Ronn G. Madrid

DI Dresser Industries: 3 patents #98 of 787Top 15%
📍 Midland, TX: #63 of 491 inventorsTop 15%
🗺 Texas: #28,318 of 125,132 inventorsTop 25%
Overall (All Time): #1,050,780 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5983743 Actuator assembly Ronald W. McGregor, Roy MacKenzie, Stanley A. Weise 1999-11-16
5916325 Actuator assembly and torque limiting system for same Don Hiller, Terry Cloninger, Roy MacKenzie, Jim S. McMillan 1999-06-29
5832779 Actuator assembly with manual locking device Don Hiller 1998-11-10
5664602 Check valve for meter run 1997-09-09
5469884 Check valve for meter run 1995-11-28