| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies | |
| #3 | Supplying combustion engines | |
| #4 | Venting or aerating devices | |
| #5 | Non-positive-displacement pumps | |
| #6 | Lubricating of machines | |
| #7 | Handling thin material | |
| #8 | Lubricating | |
| #9 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rayfield Frederick J | 8 |
| #2 | Catterson Robert K | 2 |
| #3 | Kouka Horace H | 1 |
| #4 | Rayfield George T | 1 |
| #5 | Rayfield Fred J | 1 |
| #6 | Rayfield Jr Frederick J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3458114A | Compressor | |
| US2966295A | Low oil level control | |
| US1892849A | Lubricating system | |
| US1881952A | Hose reel | |
| US1846656A | Single stage compressor | |
| US1846753A | Valve | |
| US1779640A | Unloading valve | |
| US1846655A | Compressor | |
| US1812060A | Fan structure | |
| US1881951A | Pump | |
| US1638212A | Automatic air-compressor unit | |
| US1583099A | Oil distributor | |
| US1577730A | Air-compressing system | |
| CA838540A | Compressor |