Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076702 | Installation for extracting granular material in a predetermined composition, method using that installation, a mixing unit, and means of measuring the water content of granular material | — | 1991-12-31 |
| 4828393 | Method for obtaining a base material for building mortar | Peter C. Thissen, Jan J. Tiemersma | 1989-05-09 |