| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Germany | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Climate change mitigation in transportation | |
| #3 | Rotary pistons | |
| #4 | Machines | |
| #5 | Rotary-pistons | |
| #6 | Pistons and sealings | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mallinckrodt George E | 9 |
| #2 | Mallinchrodt George Elliot | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3215127A | Rotary engine | |
| US3116932A | Rolling seal for piston | |
| US3175467A | Rotary engine | |
| US3070074A | Rotary engine sealing means | |
| GB887624A | Rotary engine of the intermittent abutment type | |
| US2895457A | Rotary engine | |
| US2882872A | Rotary engine | |
| US2852006A | Rotary engine | |
| US2943785A | Internally powered compressor | |
| US2851998A | Rotary engine |