Issued Patents All Time
Showing 1–2 of 2 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, Daniel L. Aymar, Thomas R. Horne | 2000-06-13 |
| 5743533 | Back up turn function for dart machine | John C. Nydick | 1998-04-28 |