Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820423 | Branched alkyl acrylamide types of polymer-zinc corrosion inhibitor | Guy A. Crucil | 1989-04-11 |
| 4797224 | Branched alkyl acrylamide types of polymer-zinc corrosion inhibitor | Guy A. Crucil | 1989-01-10 |