Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5900073 | Sludge reducing zinc phosphating process and composition | Michael L. Sienkowski | 1999-05-04 |
| 5728235 | Moderate temperature manganese phosphate conversion coating composition and process | Mervet S. Boulos, David C. Montrose | 1998-03-17 |
| 5595611 | Moderate temperature manganese phosphate conversion coating composition and process | Mervet S. Boulos, David C. Montrose | 1997-01-21 |
| 5378292 | Phosphate conversion coating and compositions and concentrates therefor with stable internal accelerator | Robert Miller | 1995-01-03 |