| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Medical technology | |
| #4 | Chemical engineering | |
| #5 | Control |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies | |
| #3 | Syringes | |
| #4 | Unspecified technologies | |
| #5 | Separation | |
| #6 | Mixing | |
| #7 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pinkerton Harry E | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US4941809A | Valveless positive displacement metering pump | |
| US4096059A | Proportioning fluids | |
| US4178240A | Fluid handling system | |
| US4008003A | Valveless positive displacement pump | |
| US3285182A | Diaphragm metering pump | |
| US3257953A | Positive displacement piston pump | |
| US3168872A | Positive displacement piston pump | |
| CA772414A | Positive displacement piston pump | |
| CA810918A | Diaphragm metering pump |