| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 7 | |
| #2 | Spain | 7 | |
| #3 | Switzerland | 6 | |
| #4 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Electrical machinery and energy | |
| #3 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Horticulture | |
| #2 | Machines | |
| #3 | Steam engine plants | |
| #4 | Installation of electric cables | |
| #5 | Steam turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wach Hans | 12 |
| #2 | Hans Wach | 2 |
| Publication | Filing date | Title |
|---|---|---|
| ES109895A1 | An arrangement and procedure for the transformation of piston steam machines, especially for the operation of ships. | |
| ES102368A1 | A piston steam engine with exhaust steam turbine. | |
| CA273460A | Reciprocating engine and turbine | |
| CA272990A | Steam engine | |
| CA274722A | Steam engine and turbine | |
| CA272988A | Steam engine and turbine | |
| CA289225A | Steam engine turbo combination | |
| CA272989A | Steam engine and turbine | |
| CA273652A | Steam engine and turbine |