Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6195017 | User interactive display for batting cage with pitch height indicator lamps and strike zone | Richard E. Hall | 2001-02-27 |
| 6152126 | Batting cage with user interactive selection of ball speed and strike zone with pitch height indicator lamps | Richard E. Hall, Robert E. Green | 2000-11-28 |
| 4256304 | Baseball | Edward G. Dierickx, Walter Schade, Leslie A. Pete | 1981-03-17 |
| 4220331 | Baseball batting range retrieval system | — | 1980-09-02 |
| 4197827 | Coacting wheel ball projecting device | — | 1980-04-15 |