| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Germany | 2 | |
| #3 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Measurement | |
| #3 | Medical technology | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Preheating for stem generation | |
| #2 | Measuring volume | |
| #3 | Implantable devices | |
| #4 | Steam generation | |
| #5 | Water treatment | |
| #6 | Measuring speed and acceleration |
| # | Name | Total Patents |
|---|---|---|
| #1 | Julius Ostertag | 6 |
| #2 | Ostertag Julius | 2 |
| #3 | Huttenlocher Friedrich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2018803A | Marine power plant apparatus | |
| US1883856A | Water purification for locomotives | |
| US1953087A | Marine power plant | |
| US1700716A | Method for clearing and purifying water for steam boilers of all kinds | |
| US1700714A | Method for removing easily-soluble salts from boiler feed water | |
| US1700715A | Purification system for boilers | |
| US904874A | Apparatus for indicating the level of petrol in the petrol-container of motor-cars and the like. |