Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638443 | System for controlling the distribution and use of composite digital works | Daniel G. Bobrow, Peter L. T. Pirolli | 1997-06-10 |
| 5634012 | System for controlling the distribution and use of digital works having a fee reporting mechanism | Ralph C. Merkle, Peter L. T. Pirolli | 1997-05-27 |
| 5629980 | System for controlling the distribution and use of digital works | Michalene M. Casey | 1997-05-13 |