| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Control | |
| #3 | Packaging and shipping | |
| #4 | Engines, pumps and turbines | |
| #5 | Machines | |
| #6 | Thermal processes | |
| #7 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Electrically-conductive connections | |
| #2 | Pumps | |
| #3 | Refrigerators | |
| #4 | Containers for goods storage | |
| #5 | Ice-boxes | |
| #6 | Unspecified technologies | |
| #7 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Robinson Walter W | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1969991A | Electrical contact device | |
| US1828088A | Container construction | |
| US1852334A | Vacuum tube holder | |
| US1496432A | Compressor valve | |
| US1502212A | Pressure-reducing valve | |
| US1449872A | Refrigerating device | |
| US1415399A | Refrigerating system | |
| CA313574A | Electrical contact device | |
| CA313572A | Vacuum tube holder | |
| CA313573A | Electrical contact device | |
| CA321310A | Electrical connection device |