Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132340 | Incorporating silica filler into polysiloxane rubber | Edwin R. Evans, Lawrence G. Waters | 1992-07-21 |
| 4724167 | Treated silica fillers and process for making the same | Edwin R. Evans, Lawrence G. Waters | 1988-02-09 |