Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5991734 | Method of measuring the creative value in communications | — | 1999-11-23 |
| 4409344 | Low shrink unsaturated polyester resinous composition | John E. Greenzweig | 1983-10-11 |
| 4298711 | Low shrink unsaturated polyester resinous composition | John E. Greenzweig | 1981-11-03 |