Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5426267 | Highway and airport sound barriers | George R. Underhill, Bruce T. Barit | 1995-06-20 |
| 4397582 | Method of creating a cold water conduit to be used in ocean thermal energy conversion systems | William L. Green, Dennis E. Calkins, Daniel Gray | 1983-08-09 |