| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | Denmark | 3 | |
| #3 | United Kingdom | 2 | |
| #4 | Belgium | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Rotary pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Baghuis Ludovicus Hendrikus | 2 |
| #2 | Ludovicus Hendrikus Baghuis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB977223A | Improvements in rotary hydraulic pumps or motors | |
| DE1127224B | Rotary piston machine | |
| GB781842A | Rotary pump or hydraulic motor |