Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8289231 | Compact optical system and packaging for head mounted display | Russell A. Budd, Istvan Lovas, Robert S. Olyha, Jr., Carl G. Powell | 2012-10-16 |
| 7367715 | Medium containing optical paths and electrically conducting paths for applications in high speed data links | Russell A. Budd, Punit P. Chiniwalla, James L. Sanford | 2008-05-06 |
| 6803972 | Polarization conversion system | Russell A. Budd, Rama N. Singh | 2004-10-12 |
| 6747611 | Compact optical system and packaging for head mounted display | Russell A. Budd, Istvan Lovas, Robert S. Olyha, Jr., Carl G. Powell | 2004-06-08 |
| 6503664 | Thin film materials for the preparation of attenuating phase shift masks | Kwang K. Shih | 2003-01-07 |
| 6341038 | Apparatus for polarization conversion | Russell A. Budd, Alan E. Rosenbluth | 2002-01-22 |
| 6332693 | Apparatus and method for intensifying illumination brightness by time-superposing multiple pulsed light sources | Alan E. Rosenbluth, Kei-Hsiung Yang | 2001-12-25 |
| 6222677 | Compact optical system for use in virtual display applications | Russell A. Budd | 2001-04-24 |
| 6193393 | Apparatus and method for intensifying illumination brightness by time-superposing multiple pulsed light sources | Alan E. Rosenbluth, Kei-Hsiung Yang | 2001-02-27 |
| D436960 | Head mounted display | Russell A. Budd, Shinji Nakai, Tetsune Toyokawa | 2001-01-30 |
| 6175392 | Method and apparatus for improving the color convergence of projection-based displays | — | 2001-01-16 |
| 6082861 | Optical system and method for high contrast projection display | Alan E. Rosenbluth | 2000-07-04 |
| 6064523 | Apparatus for polarization conversion | Russell A. Budd, Alan E. Rosenbluth | 2000-05-16 |
| 6019474 | Modified X-cube arrangement for improved contrast projection display | Fuad E. Doany | 2000-02-01 |
| 5943171 | Head mounted displays utilizing reflection light valves | Russell A. Budd | 1999-08-24 |
| 5939225 | Thin film materials for the preparation of attenuating phase shift masks | Kwang K. Shih | 1999-08-17 |
| 5786873 | Efficient optical system for a high resolution projection display employing reflection light valves | George Liang-Tai Chiu, Thomas M. Cipolla, Fuad E. Doany, Alan E. Rosenbluth, Rama N. Singh +1 more | 1998-07-28 |
| 5786934 | Efficient optical system for a high resolution projection display employing reflection light valves | George Liang-Tai Chiu, Thomas M. Cipolla, Fuad E. Doany, Alan E. Rosenbluth, Rama N. Singh +1 more | 1998-07-28 |
| 5777789 | Efficient optical system for a high resolution projection display employing reflection light valves | George Liang-Tai Chiu, Thomas M. Cipolla, Fuad E. Doany, Alan E. Rosenbluth, Rama N. Singh +1 more | 1998-07-07 |
| 5658060 | Arrangement for projection displays employing reflective light valves | — | 1997-08-19 |
| 5621486 | Efficient optical system for a high resolution projection display employing reflection light valves | Fuad E. Doany, Rama N. Singh, Alan E. Rosenbluth, George Liang-Tai Chiu, Thomas M. Cipolla +1 more | 1997-04-15 |
| 5559384 | Controlled levitation/suspension in a magnet-superconductor system | John J. Boland, Takeshi Takamori | 1996-09-24 |
| 5532089 | Simplified fabrication methods for rim phase-shift masks | William J. Adair, Timothy A. Brunner, Louis L. Hsu, Chi-Min Yuan | 1996-07-02 |
| 5470681 | Phase shift mask using liquid phase oxide deposition | Timothy A. Brunner, Louis L. Hsu | 1995-11-28 |
| 5213921 | Electrophotographic color printing process | Lawrence B. Schein | 1993-05-25 |