Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4414961 | Solar energy collecting panel and apparatus | — | 1983-11-15 |
| 4406403 | Method of providing a containment reservoir | — | 1983-09-27 |
| 4397899 | Variable thickness mat for use at the stress transition zone juncture of a bridge-roadway or the juncture of a railroad crossing-roadway | Ronald Marsh | 1983-08-09 |
| 4388357 | Sheet useful as a reservoir liner | — | 1983-06-14 |
| 4296884 | Containment reservoir and method | — | 1981-10-27 |
| 4265398 | Variable thickness mat for stress transition zones of railroad track crossings, switches, and the like, and method of use | — | 1981-05-05 |