Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4902170 | Grouting method - chemical method | L. Carter Knox | 1990-02-20 |
| 4552486 | Grouting method - chemical method | Lloyd C. Knox | 1985-11-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4902170 | Grouting method - chemical method | L. Carter Knox | 1990-02-20 |
| 4552486 | Grouting method - chemical method | Lloyd C. Knox | 1985-11-12 |