Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D482417 | Basketball game | Michael Oister, Christopher Wisener, William C. Boettcher | 2003-11-18 |
| D470894 | Tabletop baseball game | Michael Oister, Christopher Wisener, William C. Boettcher | 2003-02-25 |