JW

John R. Williams

AN Anadrill: 1 patents #2 of 12Top 20%
DL Draper Laboratory: 1 patents #4 of 28Top 15%
📍 Yeadon, PA: #3 of 20 inventorsTop 15%
🗺 Pennsylvania: #313 of 3,759 inventorsTop 9%
Overall (1989): #23,313 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4887464 Measurement system and method for quantitatively determining the concentrations of a plurality of gases in drilling mud Eli Tannenbaum, Trevor Burgess, Vassilios Kalessidis, Andre Orban, Klaus J. Zanker 1989-12-19
4835304 High density ester damping fluids 1989-05-30