PE

Paul D. Engelder

AG Amf Gmbh: 1 patents #55 of 165Top 35%
EC Eastman Christensen: 1 patents #18 of 49Top 40%
📍 Rancho Palos Verdes, CA: #727 of 1,701 inventorsTop 45%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,338,144 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4763258 Method and apparatus for trelemetry while drilling by changing drill string rotation angle or speed — 1988-08-09
4440219 Thermally isolated well instruments — 1984-04-03