Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6636504 | Reverse billing of internet telephone calls | Raymond F. Albers, David E. Young | 2003-10-21 |
| 5488716 | Fault tolerant computer system with shadow virtual processor | Fred B. Schneider, Butler W. Lampson, David W. Thiel | 1996-01-30 |