| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Construction of roads | |
| #3 | Unspecified technologies | |
| #4 | Vehicle transmission mounting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haight Hiram H | 13 |
| #2 | Haight Wayland Z | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2778316A | Reversible pump with automatic valving | |
| US2433360A | Gear pump | |
| US1792584A | Power take-off | |
| US1739139A | Pump | |
| US1624099A | Gear pump | |
| US1503362A | Rotary pump | |
| US1038877A | Portable well boring and drilling machine. | |
| US999026A | Trip mechanism for well-sinking machines. | |
| CA237348A | Rotary pump | |
| CA460361A | Gear pump | |
| CA279231A | Gear pump | |
| CA310986A | Pump | |
| CA547417A | Reversible pump with automatic valving |