Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5613259 | High frequency electric toothbrush | Adam Craft, Keith E. Schleiffer, James E. Dvorsky, Thomas W. Graves, Ronald B. Gray, III +1 more | 1997-03-25 |
| 5068791 | Distance and angle measurements in a wire guided vehicle | Kim A. Klopfleisch, Tim A. Wellman, Willard D. Kaiser, Mark J. Koenig, Richard W. Ridgway +1 more | 1991-11-26 |