Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12258784 | Door strike plate sensor | Richard Allen Darling, George Seelman, Fong-Min Chang | 2025-03-25 |
| 4322085 | Circular chess game | — | 1982-03-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12258784 | Door strike plate sensor | Richard Allen Darling, George Seelman, Fong-Min Chang | 2025-03-25 |
| 4322085 | Circular chess game | — | 1982-03-30 |