Issued Patents 1997
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388304 | Versatile manual sharpener | — | 1997-12-30 |
| 5691621 | Battery pack having a processor controlled battery operating system | Duong Var Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor +1 more | 1997-11-25 |
| 5652502 | Battery pack having a processor controlled battery operating system | Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor +1 more | 1997-07-29 |
| 5646508 | Battery pack having a processor controlled battery operating system | Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Alwyn H. Taylor +1 more | 1997-07-08 |
| 5633573 | Battery pack having a processor controlled battery operating system | Duong van Phuoc, Rudi Wieczorek, Elmar Zeising, Louis W. Hruska, Matthew P. Hull +1 more | 1997-05-27 |
| 5611726 | High speed precision sharpening apparatus | Robert P. Bigliano | 1997-03-18 |
| 5606242 | Smart battery algorithm for reporting battery parameters to an external device | Matthew P. Hull, Alwyn H. Taylor, Louis W. Hruska | 1997-02-25 |