| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 22 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Thermal processes | |
| #4 | Electrical machinery and energy | |
| #5 | Packaging and shipping | |
| #6 | Materials and metallurgy | |
| #7 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Christian Joseph D | 23 |
| Publication | Filing date | Title |
|---|---|---|
| US2989289A | Heat exchange device | |
| US2999398A | Speed change device | |
| US2917284A | Heat exchange apparatus | |
| US2731241A | Heat exchange device | |
| US2916807A | Heat exchange equipment | |
| US2788249A | Bearing support and seal for shaft | |
| US2760043A | Welding machine | |
| US2585739A | Cooling off of sand and gravel | |
| US2540099A | Driven drum power terminal | |
| US2503027A | Gear reduction unit | |
| US2407975A | Speed change unit | |
| US2321185A | Heat exchange screw conveyer | |
| US2170548A | Speed reduction unit | |
| US2170547A | Pressure extraction vessel shell | |
| US2143842A | Filter drive unit | |
| US2116166A | Speed change device | |
| US2108367A | Speed change device | |
| US2108368A | Speed change device | |
| US2027149A | Electric power unit | |
| US1860703A | Electric power unit and construction for the same |