| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Sawing | |
| #3 | Punching metal | |
| #4 | Marine propulsion | |
| #5 | Soldering, welding and flame cutting | |
| #6 | Ships | |
| #7 | Convertible vehicles | |
| #8 | Dry-docking of vessels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wilkie Leighton A | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US2364578A | Sailboat | |
| US2370508A | Amphibious vehicle | |
| US2293481A | Welding apparatus | |
| US2311426A | Sawing apparatus | |
| US2204840A | Convertible filing machine | |
| US1952152A | Apparatus for die stamping | |
| US2073893A | Apparatus for stamping and punching sheet metal and the like | |
| CA406337A | Amphibious vehicle | |
| CA385422A | Convertible filing machine | |
| CA376358A | Convertible sawing and abrading machine | |
| CA414213A | Welding apparatus | |
| CA409121A | Sawing apparatus | |
| CA348142A | Sheet metal stamping and punching apparatus |