| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 4 | |
| #2 | Canada | 3 | |
| #3 | Germany | 3 | |
| #4 | Australia | 1 | |
| #5 | China | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Rotary pistons | |
| #2 | Unspecified technologies | |
| #3 | Gearing | |
| #4 | Pistons and sealings | |
| #5 | Internal-combustion piston engines | |
| #6 | Climate change mitigation in transportation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schapiro Boris | 14 |
| #2 | Kruk Naum | 7 |
| #3 | Levitin Lev | 7 |
| #4 | Schapiro Boris Dr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE102011001752A1 | Rotary piston internal combustion engine | |
| WO2004076819A2 | Rotary piston machine with an oval rotary piston guided in an oval chamber | |
| DE10241807A1 | Electrical current generation unit e.g. for laptop computer, musical instrument or toy, uses rotary piston machine for driving current generator | |
| WO03014527A1 | Rotary piston engine | |
| DE10139285A1 | Guiding the axis of a rolling gear around the break point of an angular trajectory |