Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5382367 | Method of treating cooling water systems | Louis J. Koenig, Jr. | 1995-01-17 |
| 4801635 | Composition and method for dust control | Louis J. Koenig, Jr. | 1989-01-31 |
| 4746543 | Composition and method for dust control | Louis J. Koenig, Jr. | 1988-05-24 |