Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |