| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Finland | 2 | |
| #2 | Ireland | 2 | |
| #3 | South Africa | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Hungary | 1 | |
| #8 | New Zealand | 1 | |
| #9 | Poland | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Special electric heating or lighting | |
| #2 | Cables and insulators | |
| #3 | Resistors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hill Robert George | 10 |
| #2 | Robert George Hill | 2 |
| #3 | Hill Robert G | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP0416845A1 | Self-temperature-limiting electrical conducting composite | |
| IE881252L | An electric heating device |