Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9587917 | Multifunctional electronic dart board with digital target display ring (DTDR) | Robert Krzewicki | 2017-03-07 |
| 9329002 | Multifunctional electronic dart board with digital target display ring (DTDR) | Robert Krzewicki | 2016-05-03 |
| 8740222 | Multifunctional electronic dart board with digital target display ring (DTDR) | Robert Krzewicki | 2014-06-03 |