| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 15 | |
| #2 | Spain | 3 | |
| #3 | Switzerland | 2 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Machines for liquids | |
| #2 | Non-positive-displacement pumps | |
| #3 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Taylor Harvey Birchard | 16 |
| #2 | Harvey Birchard Taylor | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1231310A | Pumping system. | |
| CA198530A | Hydraulic turbine | |
| CA248506A | Turbine gate operating mechanism | |
| CA236108A | Hydraulic turbine | |
| CA207929A | System of lubrication | |
| CA245561A | Draft tube | |
| CA235606A | Composite spiral casing | |
| CA237401A | Spiral casing | |
| CA203305A | Fluid pressure control system | |
| CA224016A | Hydraulic power system | |
| CA258551A | Hydraulic turbine | |
| CA235958A | Turbine draft tube | |
| CA236866A | Hydraulic turbine head increaser | |
| CA233020A | Spiral casing | |
| CA235604A | Impulse turbine | |
| CA235605A | Annular jet turbine |