Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4896330 | Gas laser | Wolfgang Welsch, Hans Golser | 1990-01-23 |
| 4875220 | Laser tube for polarized laser emission | Wolfgang Welsch | 1989-10-17 |
| 4847841 | Magnetic field source for an ion laser | Herbert Lamprecht, deceased, by Thekla Lamprecht, heir, by Simon Lamprecht, heir, Guenter Funk | 1989-07-11 |
| 4841539 | Gas laser discharge tube with ceramic wafers and cooling wafers in a stack | Guenther Hahn, Herbert Lamprecht, deceased, Werner Seiffarth | 1989-06-20 |
| 4841540 | Gas laser arrangement | Herbert Lamprecht, deceased, by Thekla Lamprecht, heir, by Simon Lamprecht, heir, Wilhelm Tiemann | 1989-06-20 |
| 4811355 | Gas laser | Wolfgang Welsch | 1989-03-07 |
| 4800568 | Gas laser with a frequency-selective dielectric layer system | Hans P. Good | 1989-01-24 |
| 4759027 | Gas laser | Guenther Hahn, Herbert Lamprecht, deceased | 1988-07-19 |
| 4756001 | Gas discharge tube for an ion laser | Hinrich Heynisch, Klemens Hubner, Erwin Hubner, Hans Golser | 1988-07-05 |
| 4456515 | Method for making polarizers comprising a multiplicity of parallel electrically conductive strips on a glass carrier | Hans Rehme | 1984-06-26 |
| 4405210 | Display device for displaying light images on a dark background | Guenter Baur, Waldemar Greubel, Alois Schauer | 1983-09-20 |
| 4394068 | Fluorescently activated display device with improved sensitivity | Heinz Pape, Ferdinand Quella | 1983-07-19 |
| 4346963 | Liquid crystal display device | Manfred Kobale | 1982-08-31 |
| 4327970 | Display device for optically representing information and a method of operation | Guenter Baur, Hans Kohlmueller | 1982-05-04 |
| 4291947 | Process for making a liquid crystal cell | Werner Cirkler | 1981-09-29 |
| 4274713 | Device with a scatter-free light valve | — | 1981-06-23 |
| 4269480 | Process and apparatus for displaying an image in front of an optical contrasting background | Alois Schauer, Karl-Heinz Walter | 1981-05-26 |
| 4265516 | Display device with a light valve operated in a time division multiplex method | Waldemar Greubel | 1981-05-05 |
| 4264147 | Indicator device having electro-optical light valve unit | Guenther Baur, Fritz Windscheid, Volker Wittwer | 1981-04-28 |
| 4256377 | Process for producing homeotropic orientation layers for liquid crystal devices and the resultant liquid crystal devices | Hans Pink | 1981-03-17 |
| 4248502 | Electro-optical liquid crystal display device | Martin Bechteler | 1981-02-03 |
| 4244636 | Display device for the representation of bright images on a dark background and a process for operation of the device | Guenter Baur, Waldemar Greubel, Alois Schauer | 1981-01-13 |
| 4236791 | Liquid crystal illuminator having ellipoidal light guide | Werner Glaubitz | 1980-12-02 |
| 4222880 | Arrangement for optical transmission of communications | Guenter Baur, Waldemar Greubel, Rudolf Knauer | 1980-09-16 |
| 4213810 | Orientation layer for a liquid crystal display and method of manufacture | Hinrich Heynisch | 1980-07-22 |