Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076731 | Apparatus for bursting an existing pipe and widening the bore thereof | — | 1991-12-31 |
| 4447498 | Use of organopolysiloxanes in the manufacture of paper-coated plaster boards | Hans-Ferdi Fink, Gotz Koerner | 1984-05-08 |
| 4406738 | Use of an organopolysiloxane preparation for the treatment of paper for the production of plaster boards | Hans-Ferdi Fink, Gotz Koerner | 1983-09-27 |