| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 34 | |
| #2 | Canada | 4 | |
| #3 | France | 3 | |
| #4 | United Kingdom | 2 | |
| #5 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Environmental technology | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johnson Harry L | 27 |
| #2 | Johnson Louis J | 14 |
| #3 | Johnson Clarence L | 3 |
| #4 | James Johnson Louis | 2 |
| #5 | Gorden Walter L | 1 |
| #6 | Gordon Walter L | 1 |
| #7 | Johnson Louis L | 1 |
| #8 | Romuald Karasinski | 1 |
| #9 | Conover Warren M | 1 |
| #10 | Conover Warren C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2185506A | Internal combustion engine | |
| US2227500A | Die-cast motor block | |
| US2209302A | Inboard motor plant | |
| US2118761A | Internal combustion engine | |
| US2079571A | Uniflow gas engine | |
| US2209301A | Outboard motor | |
| US2078179A | Trolling plate | |
| US2067533A | Spark plug cover | |
| US2060217A | Carburetor | |
| US2078178A | Internal combustion engine | |
| US2041704A | Steering handle | |
| US2019136A | Outboard motor | |
| US1980685A | Marine motor | |
| US1990387A | Marine drive mechanism | |
| US1861048A | Outboard motor boat | |
| US1920924A | Rotary valve | |
| GB341437A | Boat propulsion system | |
| US1889964A | Marine motor | |
| US1824735A | Outboard motor | |
| US1824739A | Outboard motor assembly |