Lightmaster Systems, Inc.
Records under this name other than patents Lightmaster Systems, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,042,610 | Method and Apparatus for Improved Waveplates and Suppression of Stray Light in Lcos Kernel Applications Lapsed on the fee record Ended May 9, 2018 · Medium confidence | Lapsed on the fee record | Ended May 9, 2018 | Medium confidence |
| US 7,012,755 | Use of a lens array to increase the contrast ratio produced by a LCoS microdisplay Lapsed on the fee record Ended Mar 14, 2018 · From the USPTO record | Lapsed on the fee record | Ended Mar 14, 2018 | From the USPTO record |
| US 7,006,297 | Pathlength matched beam splitter and method and apparatus for assembly Lapsed on the fee record Ended Feb 28, 2018 · From the USPTO record | Lapsed on the fee record | Ended Feb 28, 2018 | From the USPTO record |
| US 6,999,237 | Method and apparatus for configuration and assembly of a video projection light management system Lapsed on the fee record Ended Feb 14, 2018 · From the USPTO record | Lapsed on the fee record | Ended Feb 14, 2018 | From the USPTO record |
| US 7,641,346 | Method and apparatus to increase the contrast ratio of the image produced by a LCoS based light engine Lapsed on the fee record Ended Jan 5, 2018 · From the USPTO record | Lapsed on the fee record | Ended Jan 5, 2018 | From the USPTO record |
| US 6,982,829 | Prism assembly with cholesteric reflectors Lapsed on the fee record Ended Jan 3, 2018 · From the USPTO record | Lapsed on the fee record | Ended Jan 3, 2018 | From the USPTO record |
| US 6,934,066 | Method and apparatus for use and construction of compensated higher order waveplates Lapsed on the fee record Ended Aug 23, 2017 · From the USPTO record | Lapsed on the fee record | Ended Aug 23, 2017 | From the USPTO record |
| US 7,570,240 | Method and apparatus to minimize lamp flicker and increase contrast ratio in projection devices Lapsed on the fee record Ended Aug 4, 2017 · From the USPTO record | Lapsed on the fee record | Ended Aug 4, 2017 | From the USPTO record |
| US 7,560,710 | Method and apparatus for increasing illuminator brightness in a liquid crystal on silicon (LCoS) based video projection system Lapsed on the fee record Ended Jul 14, 2017 · From the USPTO record | Lapsed on the fee record | Ended Jul 14, 2017 | From the USPTO record |
| US 7,556,382 | Illuminator that outputs linearly polarized light and that is suitable for use in microdisplay based light engine applications Lapsed on the fee record Ended Jul 7, 2017 · From the USPTO record | Lapsed on the fee record | Ended Jul 7, 2017 | From the USPTO record |