Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5746969 | Process for the production of dense silicon nitride materials | Lothar Schonfelder, Stefan Roth | 1998-05-05 |
| 5362691 | Sintered material based on Si.sub.3 N.sub.4 and processes for its production | Gerhard Wotting, Lutz Frassek | 1994-11-08 |
| 5308561 | Process for production of a Si.sub.3 N.sub.4, based material | Gerhard Wotting, Ernst Gugel | 1994-05-03 |
| 4495122 | Method for the production of a polycrystalline shaped body of silicon carbide | Ernst Gugel | 1985-01-22 |
| 4486543 | Polycrystalline shaped body of silicon carbide and method for its production | Ernst Gugel | 1984-12-04 |