Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6613425 | Insulated foam board systems and methods of producing the same | — | 2003-09-02 | $10,555,000 |
| 6551435 | Processes of forming an insulated foam board system | — | 2003-04-22 | $12,018,000 |
| 6067770 | Methods for using a foam condensation board system | John W. Lubker, II | 2000-05-30 | $15,155,000 |
| 5324458 | Method of molding a styrenic foam by extrusion | — | 1994-06-28 | $31,033,000 |
| 5149473 | Method for production of styrenic foam | — | 1992-09-22 | $61,147,000 |
| 4956395 | Styrenic foam blowing agent composition | — | 1990-09-11 | $30,580,000 |
| 4878970 | Heating of a foam cup to increase stiffness | John C. Schubert | 1989-11-07 | $16,378,000 |
| 4455272 | Method of extruding a polystyrene foam using both a physical blowing agent and water | John C. Schubert | 1984-06-19 | $15,691,000 |