Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955171 | Building panel constructed in layers | Wolfgang Heine, Karsten Lempfer, Heinz Sattler | 1990-09-11 |
| 4923664 | Process for manufacturing a building panel | Wolfgang Heine, Karsten Lempfer, Heinz Sattler | 1990-05-08 |
| 4902348 | Reinforced plasterboard and method of forming | Heinz Sattler, Rudiger Kammerer, Hanns I. Sachs, Dietmar Schapel | 1990-02-20 |
| 4626389 | Installation for the continuous production of materials using exothermically hardening binders and method | Karsten Lempfer, Heinz Sattler | 1986-12-02 |
| 4328178 | Process of producing a building product of gypsum, particularly a gypsum slab | — | 1982-05-04 |