Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4957890 | Surface treated permeable inorganic membranes and method of making same | Larry F. Wieserman, Karl Wefers, Kathryn Cross, Edward S. Martin, William H. Quayle | 1990-09-18 |
| 4183843 | Phosphate ester coating on inorganic fillers for polyester resins | James J. Koenig | 1980-01-15 |