| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | United States | 4 | |
| #4 | WIPO (World Intellectual Property Organization) | 4 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Indexing scheme for uses of lighting devices | |
| #2 | Lighting device details | |
| #3 | Non-portable lighting devices | |
| #4 | Special light sources | |
| #5 | Cameras | |
| #6 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hough Thomas A | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US2007268700A1 | Optical system with array light source | |
| WO2006084178A1 | Optical system for a wash light | |
| CA2575249A1 | Illumination system | |
| US2006007686A1 | Stage lighting methods and apparatus | |
| WO2006054999A1 | Stage lighting methods and apparatus |