| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Control | |
| #3 | Engines, pumps and turbines | |
| #4 | Machine tools | |
| #5 | Machines | |
| #6 | Mechanical elements | |
| #7 | Transport | |
| #8 | Civil engineering | |
| #9 | Agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Iversen Jacob | 3 |
| #2 | Jacob Iversen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1579940A | Apparatus for automatically regulating fluid pressures | |
| GB214617A | A pressure regulator for steam, compressed air or liquid brakes, presses, clutches and the like | |
| DE402468C | Pressure regulator for steam, compressed air and fluid brakes |