| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 68 | |
| #2 | Canada | 3 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Transport | |
| #4 | Engines, pumps and turbines | |
| #5 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Lubricating | |
| #2 | Unspecified technologies | |
| #3 | Shafts | |
| #4 | Motor vehicles | |
| #5 | Measuring volume | |
| #6 | Rotary-pistons | |
| #7 | Vehicle parts | |
| #8 | Clutches and brakes | |
| #9 | Unspecified technologies | |
| #10 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Butler Clyde G | 27 |
| #2 | Cleo Harris | 13 |
| #3 | Woelfer Jr Frank C | 8 |
| #4 | Breeze Alfred B | 7 |
| #5 | Munday Richard B | 4 |
| #6 | Walter Fred C | 3 |
| #7 | Butler Clyde Gee | 2 |
| #8 | Kaps Richard A | 2 |
| #9 | Carr James | 1 |
| #10 | Woelfer Frank C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2390762A | Pump | |
| US2324252A | Metal table | |
| US2321991A | Method of attaching hose couplings | |
| US2281737A | Discharge nozzle | |
| US2312857A | Pump | |
| US2278239A | Hose coupling | |
| US2285014A | Method of forming a coupling | |
| US2160754A | Field standard | |
| US2227292A | Lubricating device | |
| US2140257A | Can tapping and content dispensing device | |
| US2124389A | Mechanic's creeper | |
| US2131714A | Receptacle | |
| US2076215A | Can opening device | |
| US1986337A | Can opening device | |
| US1981495A | Filling device | |
| US2024126A | Grease gun | |
| US1965547A | Grease gun | |
| US1982610A | Hose reel | |
| US2067635A | Air motor | |
| US1938891A | Grease gun |