| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 6 | |
| #2 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology | |
| #3 | Semiconductors | |
| #4 | Control | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Lighting device details | |
| #2 | Advertising | |
| #3 | Semiconductor devices | |
| #4 | Traffic control systems | |
| #5 | Toys |
| # | Name | Total Patents |
|---|---|---|
| #1 | Klema Joseph N | 12 |
| #2 | Thompson Thaddeus S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2141355A | Switch for traffic signals | |
| US2096302A | Display sign | |
| US2036147A | Display sign | |
| US2012468A | Figure sign | |
| US1348810A | Lantern | |
| US1335841A | Lantern | |
| CA193625A | Lantern | |
| CA185628A | Lantern | |
| CA370915A | Display sign | |
| CA364238A | Figure sign | |
| CA215965A | Lantern | |
| CA377245A | Display sign |