Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5015615 | Molded articles based on pyrogenically prepared aluminum oxide and process for their production | Klaus Deller, Helmfried Krause | 1991-05-14 |
| 5004719 | Molded articles based on pyrogenically produced zirconium dioxide method for their manufacture, and use thereof | Klaus Deller, Manfred Ettlinger, Helmfried Krause | 1991-04-02 |
| 5002917 | Molded articles based on pyrogenically produced titanium dioxide method for their manufacturing and uses | Klaus Deller, Helmfried Krause | 1991-03-26 |
| 5002918 | Molded articles based on pyrogenically produced mixed-oxide systems of silicon dioxide and aluminum oxide, a method for manufacturing them and their use | Klaus Deller, Helmfried Krause, Klaus Bauer | 1991-03-26 |