Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6395661 | Sintered silicon nitride, components made therewith, specially valves, methods for the production and use thereof | Gerhard Wotting, Hans Lindner, Peter Woditsch | 2002-05-28 |
| 5308561 | Process for production of a Si.sub.3 N.sub.4, based material | Gerhard Leimer, Gerhard Wotting | 1994-05-03 |
| 5288672 | Ceramics based on aluminum titanate, process for their production and their use | Bernhard Freudenberg, Johannes Seyer | 1994-02-22 |
| 5153153 | Sintered ceramic materials based on aluminium titanate, a process for their production and their use | Bernhard Freudenberg, Johannes Seyer | 1992-10-06 |
| 4990473 | Zirconyl phosphate ceramics, a process for their production and their use | Isfried Petzenhauser | 1991-02-05 |
| 4495122 | Method for the production of a polycrystalline shaped body of silicon carbide | Gerhard Leimer | 1985-01-22 |
| 4486543 | Polycrystalline shaped body of silicon carbide and method for its production | Gerhard Leimer | 1984-12-04 |