| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 2 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Australia | 1 | |
| #4 | Canada | 1 | |
| #5 | Spain | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | United States | 1 | |
| #8 | WIPO (World Intellectual Property Organization) | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | AC and DC conversion devices | |
| #2 | Electric motor controls | |
| #3 | Unspecified technologies | |
| #4 | Dynamo-electric machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Davis Rex Mountford | 5 |
| #2 | Ray William Frederick | 5 |
| #3 | Davis Rex M | 2 |
| #4 | Ray William F | 2 |
| #5 | William Frederick Ray | 1 |
| #6 | Ray W F Davis R M | 1 |
| #7 | Musoke Adam | 1 |
| #8 | Rex Mountford Davis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8820758D0 | Electromagnetic coupling supplied from rotary transformer via a rotating rectifier | |
| ZA8206125B | Power conversion circuit |