Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8585834 | Rinsable metal pretreatment methods and compositions | Edward A. Rodzewich, Jeffrey I. Melzer, Donald Wayne Whisenhunt, Jr., William S. Carey, David B. Engel +2 more | 2013-11-19 |
| 8025840 | Compositions and methods for inhibiting corrosion in aqueous media | Rosa Crovetto, Claudia C. Pierce | 2011-09-27 |
| 8021607 | Methods for inhibiting corrosion in aqueous media | Claudia C. Pierce, Rosa Crovetto, Beena George, Rajendra Prasad Kalakodimi, Guruprasad Sundararajan +1 more | 2011-09-20 |
| 5909742 | Metal cleaning method | Jiangbo Ouyang, William L. Harpel | 1999-06-08 |
| 5505792 | Visible dried-in-place non-chrome polyacrylamide based treatment for aluminum | Jiangbo Ouyang, William L. Harpel, Bruce V. Haberle | 1996-04-09 |
| 5344504 | Treatment for galvanized metal | Jeffrey I. Melzer, William L. Harpel | 1994-09-06 |
| 5328525 | Method and composition for treatment of metals | Edward M. Musingo, Bruce V. Haberle | 1994-07-12 |
| 5292378 | Visible dried-in-place non-chrome treatment for aluminum | Jiangbo Ouyang, Bruce V. Haberle, William L. Harpel | 1994-03-08 |
| 5114607 | Low foaming alkaline cleaner comprising a surfactant mixture of an EO-PO-EO block copolymer and a PO-ZO-PO block copolymer | Jose B. Rivera, William L. Harpel | 1992-05-19 |