| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 8 | |
| #2 | United States | 8 | |
| #3 | Germany | 3 | |
| #4 | China | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | South Africa | 2 | |
| #8 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Servomotors | |
| #2 | Pumps | |
| #3 | Sawing | |
| #4 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hansen Leif | 21 |
| #2 | Espersen Christen | 20 |
| #3 | Clausen Peter J M | 11 |
| #4 | Petersen Jan | 9 |
| #5 | Bollmann Thyge | 6 |
| #6 | Clausen Peter Johan Mads | 5 |
| #7 | Petersen Brian | 4 |
| #8 | Esperson Christen | 4 |
| #9 | Leif Hansen | 3 |
| #10 | Christen Espersen | 3 |
| Publication | Filing date | Title |
|---|---|---|
| EP2840260A1 | Hydraulic system | |
| EP2784331A1 | Hydraulic system | |
| DE102006026337A1 | Hydraulic fluid amplifier has an outflow valve, near the high pressure end side, with an opening leading to an outflow channel at the peripheral housing wall or a plug closes the installation channel | |
| DE102004007684A1 | Portable hydraulic tool | |
| US2005265859A1 | Fluid supply unit having an integral pressure generator and pressure booster | |
| DK200201764A | Hydraulic pressure amplifier | |
| ZA200208560B | Double-acting hydraulic pressure intensifier. | |
| DE10249523A1 | booster | |
| ZA200208561B | Hydraulischer druckverstarker. |