Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5588784 | Soil or rock nail wall with outer face and method of constructing the same | Ernest D. Brandl | 1996-12-31 |
| 4911582 | Concrete replacement wall and method of constructing the wall | John J. Peirce, Jr. | 1990-03-27 |
| 4718791 | High capacity tieback installation method | — | 1988-01-12 |
| 4561804 | Earth retaining method | — | 1985-12-31 |
| 4369004 | Earth retaining method and structure | — | 1983-01-18 |