| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Control | |
| #3 | Engines, pumps and turbines | |
| #4 | Measurement | |
| #5 | Surface technology and coating | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Lubricating | |
| #2 | Coin-freed | |
| #3 | Pumps | |
| #4 | Venting or aerating devices | |
| #5 | Devices for applying fluent materials | |
| #6 | Pistons and sealings | |
| #7 | Kitchen equipment | |
| #8 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dorn Chester | 3 |
| #2 | Sundholm Edwin P | 3 |
| #3 | Dan Neidig | 3 |
| #4 | Dorn C | 2 |
| #5 | Mercer Glenn E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3820800A | Pump base assembly | |
| US3743448A | Pump base assembly | |
| US3653555A | Grease dispensing head | |
| US3655101A | Plunger assembly for hand grease guns | |
| US3589470A | Grease gun adapter | |
| US3501063A | Plunger assembly for multiloading hand grease guns | |
| US3474941A | Non-drip faucet for oil barrel pump | |
| US3473479A | Barrel pump assembly | |
| US2782962A | Solenoid operated powdered material dispenser | |
| US2914215A | Vending machine | |
| US2858001A | Gum vending machine | |
| US2859849A | Coin controlled vending apparatus |