Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6025413 | Water-based correction fluid | Yun Xu, Brian McHugh | 2000-02-15 |
| 5922400 | Correction fluid | Chiou C. Yau, Norman G. Sanborn | 1999-07-13 |
| 5877234 | Water-based correction fluid | Yun Xu, Brian McHugh | 1999-03-02 |
| 5306755 | Correction fluid containing a butyl methacrylate copolymer ditridecyl phthalate, a non-halogenated solvent and an opacifying agent | Chiou C. Yau, Norman G. Sanborn, Thomas G. Decker, Deborah A. Mayer, Vliet Hulse +1 more | 1994-04-26 |
| 5256191 | Correction fluid compositions | John A. Thompson, Edward J. Ferguson | 1993-10-26 |
| 5199976 | Ozone-friendly correction fluid | Chiou C. Yau, Norman G. Sanborn | 1993-04-06 |