Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231578 | Apparatus for document annotation and manipulation using images from a window source | Stephen R. Levin, Kenneth H. Abrams, Raymond S. Burns, Alex J. Harui, Ronald F. Rudis | 1993-07-27 |
| 4897780 | Document manager system for allocating storage locations and generating corresponding control blocks for active documents in response to requests from active tasks | — | 1990-01-30 |
| 4713754 | Data structure for a document processing system | Arun Agarwal, Suzanne C. Knapp | 1987-12-15 |