Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7126654 | Switchable color filter | Klaus Schmitt, Martin Schadt | 2006-10-24 |
| 7088411 | Liquid crystal displays including two o-plates and two c-plates, with helical arrangement of azimuthal orientations | Richard C. Allen, Thomas Bachels, Martin Schadt, Hubert Seiberle | 2006-08-08 |
| 6919946 | Compensators for liquid crystal displays and the use and manufacture of the compensators | Richard C. Allen, Thomas Bachels, Martin Schadt, Hubert Seiberle | 2005-07-19 |
| 6606134 | Reflective ferroelectric liquid crystal display and projection system | Martin Schadt | 2003-08-12 |
| 6597422 | Orientation layer for a liquid crystal material | Martin Stalder, Martin Schadt | 2003-07-22 |
| 6271906 | Liquid crystal cells for integrated optical components and a method of manufacturing them | Peter Grutter, Hans Josef Hug, Thomas Jung, Udo Schwarz | 2001-08-07 |
| 6225479 | Optically active bis-dioxane derivatives | Richard Buchecker | 2001-05-01 |
| 6163311 | Driving method for a distorted helix-ferroelectric liquid crystal cell | Martin Schadt | 2000-12-19 |
| 6111631 | Ferroelectric liquid crystal cell with a saturated switching angle or sufficient to give rise to linear liquid crystal domains | Martin Schadt | 2000-08-29 |
| 6046789 | Bistable ferroelectric liquid crystal cell | Martin Schadt | 2000-04-04 |
| 5903330 | Optical component with plural orientation layers on the same substrate wherein the surfaces of the orientation layers have different patterns and direction | Martin Ruetschi, Martin Schadt, Hubert Seiberle | 1999-05-11 |
| 5851425 | Imidazothiazoles | Richard Buchecker, Willy Friedrichsen, Sandra Lupfert | 1998-12-22 |
| 5841504 | Distorted helix ferroelectric liquid crystal cell | Martin Schadt | 1998-11-24 |
| 5818548 | Ferroelectric liquid crystal display in which the switching angle does not exceed .+-. 22.5.degree. | Martin Schadt | 1998-10-06 |
| 5760863 | DHF ferroelectric liquid crystalline display, switching or image processing apparatus | Martin Schadt | 1998-06-02 |
| 5759443 | Cyclopentyl derivatives | Alois Villiger | 1998-06-02 |
| 5686931 | Device for displaying colors produced by controllable cholesteric color filters | Martin Schadt, Hubert Seiberle | 1997-11-11 |
| 5518653 | Optically active methyl dioxanes | Richard Buchecker, Martin Schadt | 1996-05-21 |
| 5371230 | Phenylpyridine derivatives and liquid crystalline mixtures containing same | Stephen Kelly, Alois Villiger | 1994-12-06 |
| 5335303 | Quasi-phased matched optical waveguide frequency conversion element having a ferroelectric liquid crystalline material exhibiting a periodic structure | Richard Buchecker, Xin Chen, Rolf-Peter Herr, Martin Schadt, Klaus Schmitt | 1994-08-02 |
| 5327273 | Bistable ferroelectric liquid crystal display cell | Leonid A. Beresnev, Richard Buchecker, Nina I. Chernova, Vladimir Grigorievich Chigrinov, Marina V. Loseva +3 more | 1994-07-05 |
| 5319478 | Light control systems with a circular polarizer and a twisted nematic liquid crystal having a minimum path difference of .lambda./2 | Martin Schadt | 1994-06-07 |
| 5309265 | Short pitch LC layer with a temperature independent .lambda..sub.0 and containing a nematic LC doped with plural chiral additives having the same twist sense | Richard Buchecker, Martin Schadt | 1994-05-03 |
| 5295009 | Polarizer device | Mikhail I. Barnik, Seraey V. Belyaev, Nikolai Vladimirovich Malimonenko, Martin Schadt, Klaus Schmitt | 1994-03-15 |
| 5234622 | Alkenyloxyphenylpyrimidine derivatives and liquid crystalline mixtures containing same | Stephen Kelly | 1993-08-10 |