Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7662226 | Pretreated aggregate for hotmix asphalt concrete applications and other related applications | — | 2010-02-16 |
| 7264667 | Pretreated aggregate for hotmix asphalt concrete applications and other related applications | — | 2007-09-04 |
| H1250 | Modification of asphalt | Dennis W. Gilmore, Anne R. Spell, Richard Gelles, James H. Collins, Mark A. Berggren | 1993-11-02 |
| 5118733 | Asphalt-block copolymer paving composition | Richard Gelles, James H. Collins | 1992-06-02 |