Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863636 | Substituted N-hydroxyphthalimides and their use as detergent additives | Laurence W. Chang | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863636 | Substituted N-hydroxyphthalimides and their use as detergent additives | Laurence W. Chang | 1989-09-05 |