Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811722 | Glycerin triester plasticizer | George F. Schaefer, William W. Knickmeyer, David Paul | 2004-11-02 |
| 6740254 | Glycerin triester plasticizer | George F. Schaefer | 2004-05-25 |
| 6652774 | Glycerin triester plasticizer | George F. Schaefer, William W. Knickmeyer, David Paul | 2003-11-25 |