Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272644 | Method for entering powersave mode of USB hub | Masakazu Urade, Liang Lin | 2001-08-07 |
| RE34968 | Handset or speaker message retrieval system | Mark J. Karnowski | 1995-06-13 |
| 5313516 | Telephone answering device with automatic function | Mark J. Karnowski | 1994-05-17 |
| 5111500 | Handset or speaker message retrieval system | Mark J. Karnowski | 1992-05-05 |
| 5101426 | Telephone answering device with improved end signal detection | Mark J. Karnowski | 1992-03-31 |