Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758901 | Crystal support | Helmut Kaiser | 2004-07-06 |
| 6412821 | Device for the vacuum-tight connecting of two bodies of different materials | Helmut Kaiser, Udo Wenske | 2002-07-02 |
| 6299684 | Grip arranged on a pull shaft of a crystal pulling system | — | 2001-10-09 |
| 6010569 | Device for handling heavy components of a crystal puller according to the Czochralski method which is supported in a supporting frame | Udo Wenske, Helmut Kaiser, Franz Thimm | 2000-01-04 |
| 5935329 | Lifting unit for a monocrystal puller | — | 1999-08-10 |
| 5846322 | Apparatus for drawing single crystals | Helmut Kaiser, Franz Thimm | 1998-12-08 |
| 5766348 | Rotating head for crystal pulling systems for carrying out the czochralski process | Franz Thimm, Helmut Kaiser | 1998-06-16 |
| 5762703 | Method and apparatus for pulling monocrystals from a melt contained in a crucible | Franz Thimm, Helmut Kaiser | 1998-06-09 |
| 5707447 | Crystal pulling apparatus | Johann Scholler | 1998-01-13 |
| 5702523 | Rotating head for crystal pulling systems | Franz Thimm, Helmut Kaiser | 1997-12-30 |
| 5631511 | Gear motor with an electric motor having a hollow shaft | Franz Thimm, Helmut Kaiser | 1997-05-20 |