| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 3 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Machine tools | |
| #3 | Packaging and shipping | |
| #4 | Mechanical elements | |
| #5 | Chemical engineering | |
| #6 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Accessories for machine tools | |
| #3 | Turning | |
| #4 | Gearing | |
| #5 | Unspecified technologies | |
| #6 | Separation | |
| #7 | Pumps | |
| #8 | Servomotors | |
| #9 | Elevators and escalators | |
| #10 | Winches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Logan Henry H | 12 |
| #2 | Logan George H | 2 |
| #3 | Thronsen Koht Thorvald A P | 1 |
| #4 | Lilliedahl Oscar W | 1 |
| #5 | Hultgren Claes L | 1 |
| #6 | Thomas Grant L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3599505A | Variable speed pulley drive | |
| US3266096A | Pre-packing apparatus | |
| US2969130A | Lathe control | |
| US2489913A | Hoist control mechanism | |
| US2396864A | Hydraulic pressure system | |
| US2368584A | Bull gear lock | |
| US2376606A | Bar feed for lathes | |
| GB560563A | Improvements in or relating to collet chucks | |
| US2287046A | Lathe drive mechanism | |
| US2338860A | Headstock for lathes | |
| US2353346A | Hopper nozzle | |
| US2127746A | Separator | |
| US2146123A | Diaphragm pump | |
| CA418580A | Lathe drive mechanism | |
| CA429172A | Lathe bar feed | |
| CA446413A | Hydraulic pressure system |