Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6076021 | System for handicapping substitute or unranked players in a dart game match | John W. Houriet, Jr., John C. Nydick, Dean Hedin, Thomas R. Horne, Robert H. Wiles | 2000-06-13 |