Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468678 | Conformable magnetic articles for use with traffic bearing surfaces methods of making same systems including same and methods of use | Thomas J. Dahlin, Gregory F. Jacobs, David M. Hopstock, Robert L. Keech, Richard G. Newell +2 more | 2002-10-22 |
| 5853846 | Conformable magnetic articles underlaid beneath traffic-bearing surfaces | Gary W. Clark, Thomas J. Dahlin, Bernard A. Gonzalez, David M. Hopstock, Gregory F. Jacobs +1 more | 1998-12-29 |
| 4743490 | Counterfeit-resistant magnetic recording tape | — | 1988-05-10 |
| 4363038 | Contact duplication system using anisotropic magnetic recording media | — | 1982-12-07 |