Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680636 | Document annotation and manipulation in a data processing system | Stephen R. Levine, Chia-Chuang Hsiao, Karen Donoghue, Michael W. Schirpke | 1997-10-21 |
| 5625833 | Document annotation & manipulation in a data processing system | Stephen R. Levine, Chia-Chuan Hsiao, Karen Donoghue, Michael W. Schirpke | 1997-04-29 |