| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | China | 2 | |
| #4 | United States | 2 | |
| #5 | Australia | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Materials and metallurgy | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Electric motor controls | |
| #2 | Dynamo-electric machines | |
| #3 | Manufacturing processes | |
| #4 | Treatment of glass |
| # | Name | Total Patents |
|---|---|---|
| #1 | Petkanchin Lachezar Lazarov | 13 |
| #2 | Petkanchin Lachezar | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2021037340A1 | Doubly fed induction electric generator | |
| EP3211788A1 | Doubly fed induction motor | |
| EP2879280A1 | Electric machine |