Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8211528 | Roofing materials having engineered coatings | David P. Aschenbeck, Carla A. Miller | 2012-07-03 |
| 7541059 | Roofing materials having engineered coatings | David P. Aschenbeck, Carla A. Miller | 2009-06-02 |
| 7238408 | Roofing materials having engineered coatings | David P. Aschenbeck, Carla A. Miller | 2007-07-03 |
| 6471812 | Reducing humping of roofing shingles | Thomas K. Thompson | 2002-10-29 |
| 6352744 | Vacuum treatment of asphalt coating | David C. Trumbore, Frank J. Macdonald | 2002-03-05 |