| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 2 | |
| #2 | United States | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | African Intellectual Property Organization | 1 | |
| #7 | Yugoslavia (Serbia and Montenegro) | 1 | |
| #8 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry | |
| #3 | Materials and metallurgy | |
| #4 | Engines, pumps and turbines | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hempill H | 3 |
| #2 | Hurney R | 3 |
| #3 | Hempill Hugh G | 2 |
| #4 | Hurney Robert E | 2 |
| #5 | Brauns F E | 1 |
| #6 | Hurney Robert Emmot | 1 |
| #7 | Brauns Frank E | 1 |
| #8 | Brauns F | 1 |
| #9 | Hempill Hugh Gilbert | 1 |
| #10 | Brauns Frank Earl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BR7908879A | Coal gasification process | |
| US4244732A | Manufacture of steel from ores containing high phosphorous and other undesirable constituents | |
| US4199327A | Process for gasification of coal to maximize coal utilization and minimize quantity and ecological impact of waste products |