Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6434109 | Machine-readable optical disc with reading-inhibit agent | Philip E. Rollhaus, John R. Powell, Daniel J. Ehntholt, Irwin C. Winkler, Christopher J. Marmo +1 more | 2002-08-13 |
| 6414494 | Silicon oxide contamination shedding sensor | Stephan E. Schmidt, Kristin Powers Goppel | 2002-07-02 |
| 6343063 | Machine-readable optical disc with reading-inhibit agent | Philip E. Rollhaus, John R. Powell, Daniel J. Ehntholt, Irwin C. Winkler, Christopher J. Marmo +1 more | 2002-01-29 |