Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653386 | Preventing discoloration in an elastomer rubber | Hans-Joachim Graf, Yuding Feng, Brenda Elliott | 2003-11-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653386 | Preventing discoloration in an elastomer rubber | Hans-Joachim Graf, Yuding Feng, Brenda Elliott | 2003-11-25 |