Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4557147 | Bore hole rock shear tester and method for using same | John Roy Rohde | 1985-12-10 |
| 4494694 | Support system for a railroad track | Richard L. Handy, Robert O. Lamb | 1985-01-22 |
| 4411160 | Vane modulus soil tester | Alan J. Lutenegger | 1983-10-25 |