Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620116 | Rotary vane gate | Wolfgang Kluger, Klaus Schwab, Dieter Quittek, Bernd Kollner | 1997-04-15 |
| 5609761 | Filter medium and process for making same | — | 1997-03-11 |
| 5583798 | Position measuring method and apparatus for generating periodic signals free of harmonics | Wolfgang Holzapfel | 1996-12-10 |
| 5576537 | Photoelectric position measuring system using gratings having specified dimensions to suppress harmonics | Wolfgang Holzapfel | 1996-11-19 |
| 5574560 | Dual-beam interferometer with a phase grating | Erwin Spanner | 1996-11-12 |
| 5521704 | Apparatus and method for measuring absolute measurements having two measuring interferometers and a tunable laser | Jurgen Thiel, Dieter Michel | 1996-05-28 |
| 5396328 | Waveguide type displacement interferometer having two reference paths | Dieter Jestel, Dieter Michel | 1995-03-07 |
| 5271078 | Device for coupling and/or decoupling beams of light, with an integrated optical component | Michael Allgauer | 1993-12-14 |
| 5184463 | Method of reducing the emission of toxic exhaust gas components in an internal combustion engine | Ruediger Becker, Siegfried Boettcher | 1993-02-09 |
| 5173601 | Angle measuring device with correction grid | — | 1992-12-22 |
| 5162869 | Apparatus and method having at least one waveguide coupler to create at least two signals having a mutual phase shift not equal to 180 degrees | Dieter Michel | 1992-11-10 |
| 5113066 | Integrated optical sensor arrangement with detecting means, and means for controlling the optical emission wavelength of the light beam source | Dieter Michel | 1992-05-12 |