Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6243260 | Retractable speakers for portable computer | Richard W. Griencewic | 2001-06-05 |
| 5838537 | Retractable speakers for portable computer | Richard W. Griencewic | 1998-11-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6243260 | Retractable speakers for portable computer | Richard W. Griencewic | 2001-06-05 |
| 5838537 | Retractable speakers for portable computer | Richard W. Griencewic | 1998-11-17 |