| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Finland | 3 | |
| #5 | United States | 3 | |
| #6 | WIPO (World Intellectual Property Organization) | 3 | |
| #7 | China | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Special electric heating or lighting | |
| #2 | Systems for regulating electrical variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pienisaari Heikki | 20 |
| Publication | Filing date | Title |
|---|---|---|
| FI990719A0 | Ballast for fluorescent lamps | |
| FI990706A0 | Power supply for a fluorescent lamp | |
| FI981351A0 | Electronic control circuit |