Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8907894 | Touchless pointing device | Mark H. Helmick | 2014-12-09 |
| D692426 | Touchless pointing device | Mark H. Helmick | 2013-10-29 |
| D649152 | Touchless pointing device | Mark H. Helmick | 2011-11-22 |
| D392147 | Simplified tape cartridge rack | William J. Lurie, Mark H. Helmick | 1998-03-17 |
| 5014141 | Low profile, high-capacity streaming tape drive | Richard A. Nelson | 1991-05-07 |
| 4535370 | Magnetic tape reel write protect mechanism | — | 1985-08-13 |
| 4523240 | High precision floppy disc memory system | Ericson M. Dunstan, S. Barry McClelland | 1985-06-11 |
| 4329604 | Low loss brushless DC motor | Ericson M. Dunstan, Bipin V. Gami | 1982-05-11 |
| 4317146 | Compact magnetic disk storage system | — | 1982-02-23 |