Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811529 | Fire resistant flexible seal | Leonard C. Spriggs, Ralph J. Block | 1989-03-14 |
| 4436868 | Insulation composition | — | 1984-03-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811529 | Fire resistant flexible seal | Leonard C. Spriggs, Ralph J. Block | 1989-03-14 |
| 4436868 | Insulation composition | — | 1984-03-13 |