| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Republic of Korea | 3 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Brazil | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology | |
| #3 | Transport | |
| #4 | Audio-visual technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hunstable Fred E | 18 |
| #2 | Fred E Hunstable | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR20190044634A | Improved multi-tunnel electric motor / generator | |
| EP3365971A1 | A circumferential flux electric machine with field weakening mechanisms and methods of use |