Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |