DJ

Darrell Johnson

VA Valenite: 2 patents #19 of 66Top 30%
WE Weatherford/Lamb: 1 patents #476 of 852Top 60%
Overall (All Time): #874,372 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7278497 Method for extracting coal bed methane with source fluid injection Jim Terry, Tom Bailey, Adrian Vuyk, Jr., Alejandro Coy, Ron Divine 2007-10-09
6114847 Connectionless signal detection device for conductive cables 2000-09-05
5733582 Apparatus for support of large shipping containers during foaming 1998-03-31
5713133 Methods of preparing cemented metal carbide substrates for deposition of adherent diamond coatings and products made therefrom Deepak G. Bhat, Stephen L. Bennett 1998-02-03
5560839 Methods of preparing cemented metal carbide substrates for deposition of adherent diamond coatings and products made therefrom Stephen L. Bennett, Deepak G. Bhat 1996-10-01
D341601 Machine for foaming refrigerator cavities 1993-11-23