RG

Roy C. Grubbs

IC Ico: 3 patents #2 of 21Top 10%
TI Tuboscope Vetco International: 1 patents #3 of 22Top 15%
Overall (All Time): #1,276,759 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6249119 Rotating electromagnetic field defect detection system for tubular goods William W. Curtis, Jr. 2001-06-19
5867275 Method and apparatus for high speed measurement of oilfield tubular diameter and ovality William W. Curtis, Jr., Kevin D. Logan, John A. Miller 1999-02-02
5534775 Method and apparatus for noncontact magnetic particle stray magnetic flux testing of cylindrical members Clive Lam, William W. Curtis, Jr. 1996-07-09
5157977 Inspection machine 1992-10-27