Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082959 | Process for preparing silylated aromatic acids | Andreas Ernst, Howard B. Yokelson | 1992-01-21 |
| 4940810 | Process for producing silicon-containing aromatic polyacids | Howard B. Yokelson, Walter Partenheimer | 1990-07-10 |