| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Chemical engineering | |
| #5 | Transport | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Refrigerators | |
| #2 | Unspecified technologies | |
| #3 | Geothermal collectors | |
| #4 | Reduction of greenhouse gas emissions | |
| #5 | Earth drilling | |
| #6 | Domestic heating systems | |
| #7 | Parachutes | |
| #8 | Separation | |
| #9 | Unspecified technologies | |
| #10 | Air-conditioning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kemler Emory N | 8 |
| #2 | Smith Marvin M | 7 |
| #3 | Fields Clesent O | 2 |
| #4 | Oglesby Jr Sabert | 1 |
| #5 | Pease William C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2746574A | Hydraulic trailer hitch | |
| US2562748A | Heat pump | |
| US2438720A | Deep well circuit for heat pumps | |
| US2441885A | Heat pump control device | |
| US2490983A | Heat pump | |
| US2461449A | Heat pump using deep well for a heat source | |
| US2463881A | Heat pump | |
| US2432316A | Heat pump | |
| US2503456A | Heat pump | |
| US2401890A | Heat pump | |
| US2434701A | Glider and cargo pickup |