Issued Patents All Time
Showing 76–78 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5835905 | System for predicting documents relevant to focus documents by spreading activation through network representations of a linked collection of documents | James E. Pitkow, Ramana B. Rao | 1998-11-10 |
| 5638443 | System for controlling the distribution and use of composite digital works | Mark J. Stefik, Daniel G. Bobrow | 1997-06-10 |
| 5634012 | System for controlling the distribution and use of digital works having a fee reporting mechanism | Mark J. Stefik, Ralph C. Merkle | 1997-05-27 |