Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11741851 | Cognitive aid device and method for assisting | Rodney S. Tosten, Roger Nelson, Waldemar Hogerwaard | 2023-08-29 |
| 5927719 | Region-suited geography playing card deck with main information and place-filler suit cards; a companion deck; and games | — | 1999-07-27 |