| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | Greece | 2 | |
| #4 | Brazil | 1 | |
| #5 | Denmark | 1 | |
| #6 | Spain | 1 | |
| #7 | Finland | 1 | |
| #8 | Hungary | 1 | |
| #9 | Israel | 1 | |
| #10 | Norway | 1 | |
| #11 | Romania | 1 | |
| #12 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | AC and DC conversion devices | |
| #2 | Pulse technique |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gray Edwin Vincent | 5 |
| #2 | Gray Edwin Vincent Sr | 5 |
| #3 | Gray Sr Edwin Vincent | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DK371285D0 | High-frequency drive system with recovery of energy | |
| ES8504410A1 | An electrical driving device and corresponding method for the conversion and recovery of energy by means of an inductive load | |
| EP0151199A1 | Electrical conversion recovery system | |
| IL70582D0 | Conversion element recovery system | |
| GB2031665A | Electric converter system | |
| GB2030801A | Regenerative energy recovery system eg-for electromagnetic propulsion |