| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | Indonesia | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Australia | 1 | |
| #5 | China | 1 | |
| #6 | Czechia | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Japan | 1 | |
| #9 | Poland | 1 | |
| #10 | United States | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Chemical engineering | |
| #3 | Computer technology | |
| #4 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Milling | |
| #2 | Electric digital data processing | |
| #3 | Separating solids | |
| #4 | Fuels | |
| #5 | Magnetic or electrostatic solid separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brown David Kepler | 12 |
| #2 | Brown David K | 3 |
| #3 | Brown Charles Kepler Jr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU2003217725A1 | A slide show presentation and method for viewing same | |
| CA2342106A1 | Two-stage micronizer and process for reducing oversize particles using a two-stage micronizer | |
| ZA9607286B | Electrostatic pyrite ash and toxic mineral separator | |
| US5597127A | Ultrafines coal pulverizer |