Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938824 | Supersaturated solutions and a method of preparing supersaturated solutions | Wilhelm Eduard Conradie, Frederick Willem Greeff | 1999-08-17 |
| 5817369 | Method of treating wood | Wilhelm Eduard Conradie, Frederick Willem Greeff | 1998-10-06 |
| 5330847 | Treatment of wood and wood-based materials | Richard J. Murphy, David J. Dickinson | 1994-07-19 |
| 4684136 | Combination tic-tac-toe and question and answer game | — | 1987-08-04 |