Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6701814 | Multiblade screwdriver | — | 2004-03-09 |
| 6378407 | Multiblade screwdriver | — | 2002-04-30 |
| D341598 | Grill | — | 1993-11-23 |
| 5217115 | Reusable tool packaging member and system | — | 1993-06-08 |
| D334201 | Refrigerator grill | — | 1993-03-23 |
| 5145221 | Sliding latch lock | Ashley Pennebaker, Duane R. Picht | 1992-09-08 |
| D321301 | Combined drink mixer and pitcher | — | 1991-11-05 |
| D319556 | Combined grinder and drink mixer for a pitcher | — | 1991-09-03 |
| 4946286 | Liquid pitcher including a mixing and grinding mechanism | — | 1990-08-07 |
| 4934485 | Combination ladder and hand truck | — | 1990-06-19 |
| D304251 | Dual vacuum cleaner design | — | 1989-10-24 |
| 4820231 | Mannequin device | Nancy L. Mikitka, Duane R. Picht | 1989-04-11 |
| 4773503 | Ladder hinge | — | 1988-09-27 |
| D290282 | Exercise cycle | John A. Kasuba, John T. Kanne, Sajjan S. Dhaliwal | 1987-06-09 |
| D289670 | Exercise cycle | John A. Kasuba, John T. Kanne, Sajjan S. Dhaliwal | 1987-05-05 |
| D289669 | Exercise cycle | John A. Kasuba, John T. Kanne, Sajjan S. Dhaliwal | 1987-05-05 |
| D287532 | Coupling | Robert E. Jones | 1986-12-30 |
| D283539 | Control unit for light-activated dental restorative systems | — | 1986-04-22 |
| 4569100 | Vacuum device | — | 1986-02-11 |