Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537157 | Pit board for bowling alleys and method for making the same | Edward J. Dziura | 2003-03-25 |
| 5391116 | Guide finger for a pinsetter | Roy A. Burkholder | 1995-02-21 |
| 5372551 | Energy conserving pinsetter with minimized pin overflow | Corneilius M. McCarthy, Michael J. Katje | 1994-12-13 |
| 5152525 | Bowling pin orienting and directing system | Robert Aliesch, Enrico Ferrazza, Andreas Bretscher | 1992-10-06 |
| 5118105 | Bowling statistics display system | Michael G. Gautraud, David L. Mowers, Gary Dudzinski | 1992-06-02 |
| 5080358 | Bowling pin orienting and directing system | Robert Aliesch, Enrico Ferrazza, Andreas Bretscher | 1992-01-14 |
| 4884806 | Method of playing a bowling game | — | 1989-12-05 |
| 4834381 | Method of playing a bowling game | — | 1989-05-30 |
| 4834379 | Method of playing a bowling game | — | 1989-05-30 |
| 4834378 | Method of playing of bowling game | — | 1989-05-30 |
| 4834380 | Method of playing a bowling game | — | 1989-05-30 |