| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 8 | |
| #2 | Norway | 7 | |
| #3 | Australia | 6 | |
| #4 | Canada | 5 | |
| #5 | Netherlands | 5 | |
| #6 | United States | 5 | |
| #7 | Finland | 4 | |
| #8 | South Africa | 4 | |
| #9 | Brazil | 3 | |
| #10 | Denmark | 3 | |
| #11 | Japan | 3 | |
| #12 | WIPO (World Intellectual Property Organization) | 2 | |
| #13 | Czechia | 1 | |
| #14 | Spain | 1 | |
| #15 | France | 1 | |
| #16 | Hungary | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Basic materials chemistry | |
| #3 | Materials and metallurgy | |
| #4 | Machines | |
| #5 | Chemical engineering | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Producer gas production | |
| #2 | Non-metallic elements | |
| #3 | Unspecified technologies | |
| #4 | Gas-turbine plants | |
| #5 | Separation | |
| #6 | Rotary pistons | |
| #7 | Rotary-pistons | |
| #8 | Non-positive-displacement pumps | |
| #9 | Pumps | |
| #10 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Alink Aloysius Johannes Willeh | 13 |
| #2 | Ishmuratov Rustam Rizajevich | 7 |
| #3 | Soskov Sergey Nikolajevich | 7 |
| #4 | Galejev Ahmet Muhetdinovich | 7 |
| #5 | Hendriks Rudolf | 6 |
| #6 | Elferink Johannes Jacobus | 6 |
| #7 | Abaidullin Alfered Ibragimovic | 6 |
| #8 | Oude Alink Aloysius Johannes W | 6 |
| #9 | Maksimov Valeriy Arhipovich | 5 |
| #10 | Schutte Renatus Johannes Maria | 5 |
| Publication | Filing date | Title |
|---|---|---|
| EP0839280A1 | Piston compressor of the horizontal type | |
| CA2166294A1 | Rotary screw compressor | |
| CZ8196A3 | Rotary screw compressor | |
| US4809649A | Four-stroke internal-combustion engine and procedure for operating such an engine | |
| NL8702555A | Air compressor regulating valve - includes valve plate, damper plate and springs to control closing force | |
| NL8701339A | Mixture compression four stroke IC engine - has cylinder head with separate scavenging valve, outlet valve and mixture inlet valve | |
| NL8204451A | Method and apparatus for preparing a flammable gas mixture | |
| NL8202823A | Rankine cycle refrigerating plant - has multistage compressor-heat pump and throttle in discharge after condenser cooler | |
| NL8201211A | Method and apparatus for preparing a flammable gas mix, and energy generating plant |