Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6512651 | Helical scan tape track following | David A. Lawson, Thai Nguyen, Shiba P. Panda | 2003-01-28 |
| 6366422 | Helical scan tape drive error recovery using track profile mapping | David B. Daniel, Douglas C. Hansen, David A. Lawson, Thai Nguyen | 2002-04-02 |
| 5155845 | Data storage system for providing redundant copies of data on different disk drives | David G. Beal, Henry S. Ludlam, Charles A. Milligan, George A. Rudeseal, Paul R. Swiatek | 1992-10-13 |