| 6764016 |
Identification method for dip galvanizing |
John A. Robertson, Christopher D. Speakman, G. D. Stephen Hudelson |
2004-07-20 |
| 6746724 |
Dual paint coat laser-marking labeling system, method, and product |
John A. Robertson |
2004-06-08 |
| 6518542 |
Colored patch laser marking |
John A. Robertson, Ken R. Vaughn, Christopher D. Speakman |
2003-02-11 |
| 6516716 |
Method and apparatus for stamp marking with variable information |
John A. Robertson, G. D. Stephen Hudelson, Ken R. Vaughn |
2003-02-11 |
| 6451421 |
Laser markable micro-pore aluminum tags and method of their fabrication |
John A. Robertson, Ken R. Vaughn, Christopher D. Speakman |
2002-09-17 |
| 6063458 |
Folded identification tags |
John A. Robertson, Walter N. Arth, Jr., Ken R. Vaughn |
2000-05-16 |
| 6007929 |
Dual paint coat laser-marking labeling system, method and product |
John A. Robertson |
1999-12-28 |