| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Brazil | 1 | |
| #3 | Canada | 1 | |
| #4 | China | 1 | |
| #5 | Colombia | 1 | |
| #6 | Czechia | 1 | |
| #7 | EAPO (Eurasian Patent Organization) | 1 | |
| #8 | Poland | 1 | |
| #9 | United States | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Mining | |
| #2 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hummel Rex A | 10 |
| #2 | Mullet Merle R | 9 |
| #3 | Hummel R A | 1 |
| #4 | Merle R Mullet | 1 |
| #5 | Mullet M R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6270163B1 | Mining machine with moveable cutting assembly and method of using the same |