| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | Australia | 1 | |
| #4 | Denmark | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Finland | 1 | |
| #7 | Norway | 1 | |
| #8 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Thermal processes | |
| #3 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Special electric heating or lighting | |
| #3 | Steam generation | |
| #4 | Fluid heaters |
| # | Name | Total Patents |
|---|---|---|
| #1 | Meshekow Robert L | 9 |
| #2 | Deans Harry A | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA2128761A1 | Downhole radial flow steam generator for oil wells | |
| US5142608A | Horizontal steam generator for oil wells | |
| US4783585A | Downhole electric steam or hot water generator for oil wells |