Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689662 | Shell extensions for an operating system | George H. Pitt, III, Joseph D. Belfiore, Christopher J. Guzak | 1997-11-18 |
| 5659747 | Multiple level undo/redo mechanism | — | 1997-08-19 |
| 5659791 | Encapsulation of extracted portions of documents into objects | Mark A. Malamud, Royce A. Levien | 1997-08-19 |
| 5630080 | Method and system for the direct manipulation of information, including non-default drag and drop operation | Mark A. Malamud, John Elsbree, Christopher J. Guzak, Kurt J. Eckhardt, Royce A. Levien | 1997-05-13 |