Roy C. Grubbs
4Patents
4h-index
4Co-inventors
43Inventor score
Filing activity: Jun 13, 1990 → Oct 6, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5867275A | Method and apparatus for high speed measurement of oilfield tubular diameter and ovality | Physics | 12 | Expired |
| US5534775A | Method and apparatus for noncontact magnetic particle stray magnetic flux testing of cylindrical members | Physics | 11 | Expired |
| US5157977A | Inspection machine | Physics | 10 | Expired |
| US6249119A | Rotating electromagnetic field defect detection system for tubular goods | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.