Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9526148 | Illuminating display systems | Mark David Lowenthal, William Johnstone Ray, David R. Bowden | 2016-12-20 |
| 9119244 | Illuminating display systems | Mark David Lowenthal, William Johnstone Ray, David R. Bowden | 2015-08-25 |
| 8739440 | Illuminating display systems | Mark David Lowenthal, William Johnstone Ray, David R. Bowden | 2014-06-03 |
| 8739441 | Apparatuses for providing power for illumination of a display object | Mark David Lowenthal, William Johnstone Ray, David R. Bowden | 2014-06-03 |
| 8413359 | Illuminating display systems | Mark David Lowenthal, William Johnstone Ray, David R. Bowden | 2013-04-09 |
| 8127477 | Illuminating display systems | Mark David Lowenthal, David R. Bowden, William Johnstone Ray | 2012-03-06 |
| 7992332 | Apparatuses for providing power for illumination of a display object | Mark David Lowenthal, David R. Bowden, William Johnstone Ray | 2011-08-09 |
| 4884447 | Hearing faculty testing | David Kemp | 1989-12-05 |