Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371138 | Ultraviolet blocking polysiloxane resin and process for making the same | Joy M. Schaefer | 1994-12-06 |
| 4980075 | Coolant filter composition | John F. Dobrez | 1990-12-25 |
| 4842731 | Coolant filter manufacture and composition for use in same | John F. Dobrez | 1989-06-27 |