Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804579 | Thermoinsulating moldings containing a porous, inorganic thermoinsulating material and having an organopolysiloxane coating thereon | Dieter Gerhardinger, Gunter Stohr, Karl-Heinrich Wegehaupt | 1989-02-14 |