Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5948858 | Rubber-modified polymer composition | Cornelis Eme Koning, Wilhelmus G. M. Bruls | 1999-09-07 |
| 4434252 | Rigid polyvinyl chloride foam | Pieter J. Lemstra, Lambert H. T. Van Unen | 1984-02-28 |
| 4427795 | Rigid polyvinyl chloride foam | Pieter J. Lemstra, Lambert H. T. Van Unen | 1984-01-24 |
| 4415514 | Method for the preparation of rigid polyvinyl chloride foams | Pieter J. Lemstra, Lambert H. T. Van Unen | 1983-11-15 |
| 4233371 | Method for the manufacture of an electrochemical cell or battery and battery made by the method | — | 1980-11-11 |