Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450721 | Stylus and retractable pen | Gregor Mittersinker, Raul G. Pereira | 2002-09-17 |
| 6273627 | Expandable writing instrument | Gregor Mittersinker, Kevin Browning | 2001-08-14 |
| 6146038 | Variable contour grip | Gregor Mittersinker, Mitchell E. Seamans, Donald Santos, Ralph Graves | 2000-11-14 |
| 5221209 | Modular pad array interface | — | 1993-06-22 |
| 4854475 | Instrument cassette | Roy E. Riihimaki, Karl Zoll | 1989-08-08 |
| 4850891 | Memory module socket | William B. Walkup | 1989-07-25 |