Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6306784 | Alkali silicate glass | Martin Frank, Volker Rheinberger, Wolfram Höland | 2001-10-23 |
| 6280863 | Translucent apatite glass ceramic | Martin Frank, Wolfram Höland, Volker Rheinberger | 2001-08-28 |
| 6200137 | Chemically stable translucent apatite glass ceramic | Wolfram Höland, Martin Frank, Volker Rheinberger | 2001-03-13 |
| 6121175 | Alkali silicate glass | Frank J. Martin, Volker Rheinberger, Wolfram Höland | 2000-09-19 |