| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 114 | |
| #2 | Canada | 9 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nero Arvid H | 33 |
| #2 | Peterson Johann G | 24 |
| #3 | Gates Frederic P | 16 |
| #4 | Marshall Norman | 10 |
| #5 | Carlson Johannes R | 8 |
| #6 | Gauthier George A | 6 |
| #7 | Harrington William H | 5 |
| #8 | Perkins Benjamin C | 3 |
| #9 | Perkins Charles G | 3 |
| #10 | Peterson Johann Godfrey | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US1672727A | Electric switch | |
| US1704625A | Electric switch | |
| US1658151A | Guard for foot presses | |
| US1600094A | Electric switch | |
| US1704568A | Electric switch | |
| US1702220A | Electric switch | |
| US1645393A | Electric switch | |
| US1685858A | Electric switch | |
| US1548696A | Electric-lamp socket | |
| US1667636A | Cable grip | |
| US1679442A | Electric switch | |
| US1484494A | Separable attachment plug | |
| US1506563A | Electric switch | |
| US1466507A | Electric switch | |
| US1669283A | Electric switch | |
| US1593434A | Electric switch | |
| US1519924A | Electric switch | |
| US1690052A | Electric switch | |
| US1564016A | Electric switch | |
| US1519923A | Electrical flush receptacle |