| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 5 | |
| #3 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Audio-visual technology | |
| #3 | Electrical machinery and energy | |
| #4 | Computer technology | |
| #5 | Semiconductors | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Optical systems | |
| #2 | Television | |
| #3 | Lighting device details | |
| #4 | Cameras | |
| #5 | Unspecified technologies | |
| #6 | Electric switches | |
| #7 | Electric digital data processing | |
| #8 | Semiconductor devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Li Kenneth K | 12 |
| #2 | Sillyman Sheldon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2013077062A1 | Projector system having interchangeable light source modules | |
| EP0886919A1 | A pointing and/or directional control device | |
| WO9829946A1 | A pointing and/or directional control device |