Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9867737 | Auto-darkening filter of welding shield | — | 2018-01-16 |
| 9443479 | Image acquisition and display system and method using information derived from an area of interest in a video image implementing system synchronized brightness control and use of metadata | James L. Fergason | 2016-09-13 |
| 9244279 | Glasses-type augmented reality display system | — | 2016-01-26 |
| 9218770 | Apparatus, method and system to enhance legibility of images shown on a passive display in a bright environment by increasing or maintaining a range of grey levels and decreasing a number of grey levels in that range | James L. Fergason | 2015-12-22 |
| 8954885 | Display system using metadata to adjust area of interest and method | Arthur Berman | 2015-02-10 |
| 7553021 | Optical system for monitoring eye movement | James L. Fergason | 2009-06-30 |
| 7550698 | Light sensor arrangement for auto-darkening lenses and method | — | 2009-06-23 |
| 7501613 | Light detecting and angle of view compensation for optical devices and method | — | 2009-03-10 |
| 7347551 | Optical system for monitoring eye movement | James L. Fergason | 2008-03-25 |
| 7342210 | Remote control for auto-darkening lens systems and method | — | 2008-03-11 |
| 7161135 | Multi-stage sensor for an auto-darkening lens for use in welding and method | — | 2007-01-09 |
| 7150047 | Indicator layout on an auto-darkening lens for use in welding | — | 2006-12-19 |
| 6554428 | Method and apparatus for adjusting optical device to correspond to eye positions | Jeffrey K. Fergason | 2003-04-29 |
| 6067129 | Welding lens with integrated display and method | — | 2000-05-23 |
| 5959705 | Welding lens with integrated display, switching mechanism and method | — | 1999-09-28 |
| 5857215 | Helmet with high performance head and face protection utilizing molded composite materials and method | Jeffrey K. Fergason | 1999-01-12 |
| 5751258 | Liquid crystal lens driver electronics for eye protection, high speed shuttering with consistent performance | Jeffrey K. Fergason | 1998-05-12 |
| 5515186 | Eye protection device for welding helmets which reduces obliquely incident light | Jeffrey K. Fergason, Arthur Berman, James L. Fergason | 1996-05-07 |
| 5377032 | Electro-optic light shutter and frame assembly with integrated switching mechanism | Jeffrey K. Fergason | 1994-12-27 |
| D353692 | Welding lens assembly | Jeffrey K. Fergason | 1994-12-20 |
| 5347383 | High speed, low power driving circuit for liquid crystal shutter | — | 1994-09-13 |
| 5252817 | Detector system for detecting the occurrence of welding using detector feedback | Jeffrey K. Fergason | 1993-10-12 |
| 5248880 | Detector system for detecting the occurrence of welding | — | 1993-09-28 |
| 5208688 | Eye protection device for welding helmets | Jeffrey K. Fergason, Arthur Berman, James L. Fergason | 1993-05-04 |
| 5074647 | Liquid crystal lens assembly for eye protection | Jeffrey K. Fergason | 1991-12-24 |