Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9758419 | Method and installation for producing hollow microbeads of glass | — | 2017-09-12 |
| 4826788 | Composition for producing foamed glass molded products | Heinz Dennert, Alois Seidl | 1989-05-02 |
| 4430107 | Method for making shaped foam glass bodies | Heinz Dennert, Alois Seidl | 1984-02-07 |
| 4295810 | Apparatus for insulating building blocks | Heinz Dennert | 1981-10-20 |