Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5393821 | Carbon blacks | Chiung-Huei Shieh, William A. Farr, Thomas E. McElwain, Roscoe W. Taylor, Glenn Denstaedt +2 more | 1995-02-28 |
| D347767 | Beverage can insulator | — | 1994-06-14 |
| D346094 | Beverage can insulator | — | 1994-04-19 |