Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371875 | Logic on main storage memory cards for insertion and extraction of tag bits | Quentin G. Schmierer | 1994-12-06 |
| 5339397 | Hardware primary directory lock | Sheldon B. Levenstein, Lynn A. McMahon, Joseph P. Weigel | 1994-08-16 |
| 5274648 | Memory card resident diagnostic testing | Steven J. Finnes, Charles P. Geer, Quentin G. Schmierer | 1993-12-28 |
| 5206941 | Fast store-through cache memory | Charles P. Geer, Sheldon B. Levenstein | 1993-04-27 |
| 5193165 | Memory card refresh buffer | Charles P. Geer | 1993-03-09 |
| 5167029 | Data processing system and associated process using memory cards having data modify functions utilizing a data mask and an internal register | Quentin G. Schmierer | 1992-11-24 |
| 5131085 | High performance shared main storage interface | Sheldon B. Levenstein | 1992-07-14 |