| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | Germany | 3 | |
| #3 | Spain | 3 | |
| #4 | France | 2 | |
| #5 | Israel | 2 | |
| #6 | Italy | 2 | |
| #7 | Sweden | 2 | |
| #8 | United States | 2 | |
| #9 | Austria | 1 | |
| #10 | Belgium | 1 | |
| #11 | Canada | 1 | |
| #12 | EPO (European Patent Office) | 1 | |
| #13 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Control | |
| #4 | Measurement | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hoogeboom Adrianus Johannes Th | 2 |
| #2 | Weide Jouke Van Der | 2 |
| #3 | De Groot Marius | 2 |
| #4 | Leeuwma Derk Buiskool | 1 |
| #5 | Van Der Weide J | 1 |
| #6 | Hoogeboom A J T | 1 |
| #7 | Leeuwma Derk B | 1 |
| #8 | Van Der Weide Jouke | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4436110A | Pressure regulating systems | |
| GB2091910A | Fluid pressure regulating system | |
| NL7501513A | Control device for a combustion engine. | |
| IL45631D0 | Disk-shaped air filter | |
| IL43577D0 | Control device for a multiple cylinder-piston motor |