Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 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, Richard E. Fayling, Richard G. Newell +2 more | 2002-10-22 | $30,009,000 |
| 5853846 | Conformable magnetic articles underlaid beneath traffic-bearing surfaces | Gary W. Clark, Thomas J. Dahlin, Richard E. Fayling, Bernard A. Gonzalez, David M. Hopstock +1 more | 1998-12-29 | $18,137,000 |
| 5593246 | Patterned chalk-resistant pavement marking and method of making | Thomas P. Hedblom, Kathleen A. Hachey | 1997-01-14 | $12,261,000 |