| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Engines, pumps and turbines | |
| #5 | Mechanical elements | |
| #6 | Transport | |
| #7 | Furniture and games |
| # | Name | Total Patents |
|---|---|---|
| #1 | Xardell Charles A | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2088945A | Spark plug | |
| US1733145A | Electric heater | |
| US1501158A | Hydraulic distributing valve | |
| US1386300A | Electric heater | |
| US1350586A | Electric heater | |
| US1341965A | Tank | |
| US1350631A | Electric heater | |
| US1328642A | Dust-separator | |
| US1338412A | Primary battery | |
| US1353556A | Heater | |
| CA373628A | Spark plug | |
| CA353546A | Spark plug |