Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5378401 | Preparation of zinc polyphosphate in high PH solution | Joseph E. Lubitsky, William C. Flanagan | 1995-01-03 |
| 4931187 | Cooling tower system | Joseph M. Hannigan, Joseph M. Derham | 1990-06-05 |