Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4710319 | Autofluorogram composition | Duk Hi Lee, Patricia A. Mayer | 1987-12-01 |
| 4645618 | Water soluble floors | Duk Hi Lee, Robert E. O'Brien | 1987-02-24 |
| 4522742 | Water soluble fluor compositions | Duk Hi Lee, Robert E. O'Brien | 1985-06-11 |