| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | France | 4 | |
| #3 | United Kingdom | 3 | |
| #4 | Switzerland | 1 | |
| #5 | Denmark | 1 | |
| #6 | Italy | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Control | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Magnets and transformers | |
| #2 | Systems for regulating electrical variables | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Olsen Willy | 5 |
| #2 | Bentley Hugh | 3 |
| #3 | Ryan K A | 2 |
| #4 | Ryan Kenneth Augustine | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2535653A1 | CONSTANT VOLTAGE TRANSFORMER | |
| GB1173447A | Improvements in Magnetic Cores | |
| FR1532846A | Advanced magnetic cores, e.g. for transformers | |
| FR1473573A | Transformer cores and method of manufacturing said cores | |
| GB1104772A | Transformer cores and method of making same | |
| FR96218E | Advanced magnetic cores, for example for transformers. |