| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 11 | |
| #2 | Austria | 3 | |
| #3 | United Kingdom | 2 | |
| #4 | United States | 2 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rixen Carl Johan | 19 |
| #2 | Carl Johan Rixen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1191469A | Device for the prevention of air-losses in liquid-containers under air-pressure. | |
| GB191424788A | Improvements in Automatic Water Supply Plants under Airpressure. | |
| GB191424789A | Improvements in or relating to Rotary Pumps. | |
| US1157806A | Rotary pump with rotating abutment protruding into a circular groove. | |
| CA346976A | Camera |