| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 2 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 | |
| #3 | Brazil | 1 | |
| #4 | German Democratic Republic | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Spain | 1 | |
| #7 | Finland | 1 | |
| #8 | France | 1 | |
| #9 | Ireland | 1 | |
| #10 | Israel | 1 | |
| #11 | Italy | 1 | |
| #12 | Norway | 1 | |
| #13 | Poland | 1 | |
| #14 | Portugal | 1 | |
| #15 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Circuits for supplying electric power | |
| #2 | Batteries | |
| #3 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roestlund Karl Johnie | 3 |
| #2 | Roestlund K | 3 |
| #3 | Rostlund Karl Johnie | 2 |
| #4 | Roestlund Johnie K | 1 |
| #5 | Rostlund K | 1 |
| #6 | Rostlund Karl J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IE802348L | Recharging batteries by means of alternating current | |
| BR8008919A | Battery recharge appliance by pulsing current | |
| GB2040119A | Method and apparatus for recharging dry batteries |