Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5876290 | Sheet metal pin table and respot actuator | Gerald P. Hermanson, Ernest B. Pryor, JR., Matthew Stubbs | 1999-03-02 |
| 5800274 | Bowling alley bumper system for producing visual effects | Kent L. Widrick, John Madsen, Darrin Bryant, Leonard Pauley | 1998-09-01 |
| 5779554 | Three-dimensional bowling alley masking unit | John Madsen, Sean Anderson | 1998-07-14 |
| 5630761 | Bowling ball return mechanism | Sean Anderson, Larry Gooss, Bill Riley, Yakov Shmerelzon, Michael W. Stephens | 1997-05-20 |