| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Optics | |
| #3 | Medical technology | |
| #4 | Machines | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Lighting device details | |
| #2 | Optical systems | |
| #3 | Non-portable lighting devices | |
| #4 | Nails | |
| #5 | Diagnosis and surgery | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brady Charles T | 17 |
| Publication | Filing date | Title |
|---|---|---|
| US1935387A | Lamp shade | |
| US1900539A | Reading lamp | |
| US1776101A | Lamp construction | |
| US1782601A | Lamp shade | |
| US1745976A | Lamp shade | |
| US1832475A | Lamp | |
| US1717756A | Heat guard | |
| US1717754A | Magnifying and illuminating device | |
| US1680126A | Examination lamp | |
| US1735949A | Magnifying and illuminating device | |
| US1717755A | Magnifying and illuminating device | |
| US1783278A | Clamp for examination devices | |
| US1771430A | Lamp | |
| CA317745A | Lamp shade | |
| CA279020A | Lamp housing | |
| CA273397A | Lamp | |
| CA317746A | Lamp shade |