Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5266263 | Reprocessing of used evaporation boats | Peter Matje | 1993-11-30 |
| 4908173 | Process for preparation of dense molded bodies of polycrystalline aluminum nitride without use of sintering aids | Karl-Alexander Schwetz, Wolfgang Grellner, Max Mohr, Alfred Lipp | 1990-03-13 |
| 4885264 | Pressure-sintered polycpystalline mixed materials with a base of hexagonal boron nitride, oxides and carbides | Peter Sindlhauser, Alfred Lipp | 1989-12-05 |
| 4803183 | Dense molded bodies of polycrystalline aluminum nitride and process for preparation without use of sintering aids | Karl-Alexander Schwetz, Wolfgang Grellner, Max Mohr, Alfred Lipp | 1989-02-07 |
| 4732620 | Thermoelement comprising a graphite/boron carbide thermocouple | Alfred Lipp, Klaus Reinmuth, Peter Arnold | 1988-03-22 |
| 4687655 | Process for the manufacture of shaped articles from reaction-bonded silicon nitride by nitridation under elevated nitrogen gas pressure | Alfred Lipp, Klaus Reinmuth, Peter Arnold, Johannes Napholcz | 1987-08-18 |
| 4634640 | Dense shaped articles consisting of polycrystalline hexagonal boron nitride and process for their manufacture by isostatic hot-pressing | Alfred Lipp, Klaus Reinmuth | 1987-01-06 |
| 4564601 | Shaped polycrystalline silicon carbide articles and isostatic hot-pressing process | Jochen Kriegesmann, Alfred Lipp, Klaus Reinmuth, Karl-Alexander Schwetz | 1986-01-14 |
| 4560668 | Substantially pore-free shaped articles of polycrystalline silicon carbide, and a process for their manufacture by isostatic hot-pressing | Alfred Lipp, Klaus Reinmuth | 1985-12-24 |
| 4528120 | Refractory, electrically conductive, mixed materials containing boron nitride and process for their manufacture | Alfred Lipp, Klaus Reinmuth | 1985-07-09 |
| 4524138 | Substantially pore-free sintered polycrystalline articles of .alpha.-silicon carbide, boron carbide and free carbon and process for their manufacture | Karl-Alexander Schwetz, Klaus Reinmuth, Franz Isemann | 1985-06-18 |
| 4495123 | Dense shaped articles consisting of polycrystalline hexagonal boron nitride and process for their manufacture by isostatic hot pressing | Alfred Lipp, Klaus Reinmuth | 1985-01-22 |
| 4381931 | Process for the manufacture of substantially pore-free shaped polycrystalline articles by isostatic hot-pressing in glass casings | Klaus Reinmuth, Alfred Lipp | 1983-05-03 |
| 4351858 | Process for the manufacture of substantially pore-free shaped polycrystalline articles by isostatic hot-pressing | Klaus Reinmuth, Alfred Lipp, Johannes Napholcz, Peter Arnold | 1982-09-28 |