JW

Jefrey E. Walker

VI Varco I/P: 3 patents #46 of 168Top 30%
Overall (All Time): #1,600,259 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6932883 Screens for vibratory separators Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David Schulte, Charles N. Gricher +2 more 2005-08-23
6736270 Glued screens for shale shakers Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David W. Largent, David Schulte +3 more 2004-05-18
6669985 Methods for making glued shale shaker screens Thomas C. Adams, Kerry Ward, Kenneth W. Seyffert, David W. Largent, David Schulte +3 more 2003-12-30