Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7076468 | Method and system for licensing digital works | James C. Hillegass, Yaobing Deng, Mark Eastom, John C. Gateley, James A. Grinsfelder +8 more | 2006-07-11 |
| 7062468 | Licensed digital material distribution system and method | James C. Hillegass, Yaobing Deng, Mark Eastom, John C. Gateley, James A. Grinsfelder +8 more | 2006-06-13 |
| 4308916 | Pitless connection incorporating pressure relief valve | — | 1982-01-05 |