Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623886 | Apparatus and method for injecting prehydrated hydrophilic polymer material into the ground | — | 1997-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623886 | Apparatus and method for injecting prehydrated hydrophilic polymer material into the ground | — | 1997-04-29 |