| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology | |
| #3 | Environmental technology | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heaton Thomas K | 4 |
| #2 | Shine William P | 4 |
| #3 | Evarts David A | 4 |
| #4 | Sieron Richard L | 4 |
| #5 | Wegrzyn Joseph | 3 |
| #6 | Ziff Stephen J | 2 |
| #7 | Johnstone Robert M | 2 |
| #8 | Wegrzyn Joseph S | 2 |
| #9 | Holmes Jeff | 2 |
| #10 | Erickson Milt | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US6082031A | Canopy mounting device for exit sign | |
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| US5018290A | Exit sign | |
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| US4144462A | Emergency lighting fluorescent pack |