| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Transport | |
| #3 | Civil engineering | |
| #4 | Machines | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Vehicle transmission mounting | |
| #3 | Fire-fighting | |
| #4 | Unspecified technologies | |
| #5 | Lubricating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kilgour Walter M S | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US2291237A | Switch | |
| US2291236A | Switch | |
| US1941695A | Alarm device | |
| US1941694A | Alarm device | |
| US1740895A | Motor-vehicle safety device | |
| US1588459A | Circuit breaker | |
| US1460383A | Lubricating system and apparatus | |
| CA261054A | Circuit breaker | |
| CA305628A | Motor vehicle safety device | |
| CA305629A | Motor vehicle safety device |