Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5801637 | Apparatus comprising a rechargeable battery and a display on which the display symbols appearing during a cycle of use of the battery are displayed in an accelerated manner in a demonstration mode | — | 1998-09-01 |
| 5789901 | Apparatus with rechargeable batteries and a device for calculating and indicating the number of remaining use sessions of the apparatus | — | 1998-08-04 |