Issued Patents All Time
Showing 51–75 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642604 | Spacing conveyor mechanism | — | 1997-07-01 |
| 5641251 | All-ceramic drill bit | August Leins | 1997-06-24 |
| 5638665 | Spacing conveyor mechanism | — | 1997-06-17 |
| 5610594 | Frequency monitoring device | Hans-Martin Baumann | 1997-03-11 |
| 5565822 | TEM waveguide arrangement | Felix Gassmann, Henk Hoitink, Hans Schar | 1996-10-15 |
| 5469148 | Frequency monitoring device | Hans-Martin Baumann | 1995-11-21 |
| 5418416 | Brushless three-phase DC motor | — | 1995-05-23 |
| 5382853 | Brushless DC drive motor with external rotor for use in disc drives and like devices | Johann von der Heide, Alfred Merkle | 1995-01-17 |
| 5361010 | Tachogenerator for speed control of electric motors | — | 1994-11-01 |
| 5349275 | Brushless direct current motor | — | 1994-09-20 |
| 5268623 | D.c. motor with a current-limiting arrangement | — | 1993-12-07 |
| 5267842 | Miniaturized direct current fan | Siegfried Harmsen, Gunter Wrobel | 1993-12-07 |
| 5233762 | Radiator unit for drying and/or hardening coatings of inks and/or varnishes in printing presses | Josef Reiter | 1993-08-10 |
| RE34268 | Brushless direct current motor system | — | 1993-06-01 |
| 5174588 | Automatically locking chuck for drill or the like | Wilbert Reibetanz, Karl Wanner, Otto Baumann | 1992-12-29 |
| 5158177 | Wraparound multipack with carrying handle | Emanuel Negelen | 1992-10-27 |
| 5135363 | Miniaturized direct current fan | Siegfried Harmsen, Gunter Wrobel | 1992-08-04 |
| 5134682 | Driver circuit for a d.c. motor without commutator | — | 1992-07-28 |
| RE33813 | Electric motor, particularly a brushless direct current motor | Johann von der Heide, Ernst-Moritz Korner | 1992-02-04 |
| 5038083 | Driver circuit for a d.c. motor without commutator | — | 1991-08-06 |
| 4924156 | Driver circuit for a D.C. motor without commutator | — | 1990-05-08 |
| RE33167 | Circuit arrangement for monitoring speed of a drive motor | Helmut Moosmann | 1990-02-20 |
| 4902941 | Drive motor for information-storage-disk devices | Alfred Merkle, Georg Moosmann | 1990-02-20 |
| 4806832 | Fan with temperature controlled rotation speed | — | 1989-02-21 |
| 4804892 | Collectorless direct current motor, driver circuit for a drive and method of operating a collectorless direct current motor | — | 1989-02-14 |