| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 5 | |
| #2 | Germany | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Canada | 2 | |
| #5 | Australia | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Chemical engineering | |
| #3 | Environmental technology | |
| #4 | Machine tools | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Metal-working | |
| #3 | Reduction of greenhouse gas emissions | |
| #4 | Unspecified technologies | |
| #5 | Chemical or physical processes | |
| #6 | Nuclear reactors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koning Cornelis Johannes De | 2 |
| #2 | De Koning Cornelis J | 2 |
| #3 | Koning Cornelius Johannes De | 1 |
| #4 | Holthuis Carolus Hendrikus | 1 |
| #5 | De Koning Cornelis Johannes | 1 |
| #6 | De Konig Cornelis Johannes | 1 |
| #7 | Holthuis Carolus H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU2219592A | Control system for piston membrane pump | |
| US5193577A | Sludge pump valve | |
| NL9001676A | Pump system. | |
| NL9001445A | Slurry pump valve. | |
| NL8600545A | VALVE CONSTRUCTION FOR A displacement pump. | |
| NL8502193A | Pump device. | |
| DE2832703A1 | Hydraulic tensioning for pressure vessel cover - having tensioning pistons and retroactive pistons to secure the mounting ring, these two being separate to simplify connections |