RH

R. Hart

NL National Oilwell (U.K.) Limited: 2 patents #1 of 5Top 20%
📍 Northolt, AZ: #1 of 1 inventorsTop 100%
Overall (All Time): #1,659,445 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D341370 Portable camera stabilizer Donna M. Hart 1993-11-16
5129311 Piston assembly with primary and co-centric secondary portions 1992-07-14
5081909 Releasable latch mechanism for attaching an actuator to a valve 1992-01-21