| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Australia | 3 | |
| #3 | Canada | 3 | |
| #4 | WIPO (World Intellectual Property Organization) | 3 | |
| #5 | China | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Special wind, spring and weight motors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Utter Robert E | 11 |
| #2 | Singletary Charles A | 6 |
| #3 | Hill Joe T | 6 |
| #4 | Mackelfresh Michael P | 5 |
| #5 | Lin Chih M | 4 |
| #6 | Kotlarek Peter A | 3 |
| #7 | Williams John R | 3 |
| #8 | Harrison Mark W | 3 |
| #9 | Fields Gene M | 3 |
| #10 | Wollitz John Kenneth | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US5683236A | Anti-reverse rotation valve for scroll compressor | |
| CN1179814A | Protection device for high side co-rotating scroll compressor | |
| WO9623976A1 | Protection device for a high side co-rotating scroll compressor | |
| US5609478A | Radial compliance mechanism for corotating scroll apparatus | |
| CA2356534A1 | Scroll apparatus with enhanced lubrication |