| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 3 | |
| #2 | United States | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Surface technology and coating |
| # | Technology | |
|---|---|---|
| #1 | Rare-earth metal compounds | |
| #2 | Inorganic compounds | |
| #3 | Single-crystal-growth | |
| #4 | Building materials | |
| #5 | Casting metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nichol Scott | 11 |
| #2 | Smith Daniel | 5 |
| Publication | Filing date | Title |
|---|---|---|
| WO2016134455A1 | Process for making high-purity aluminum oxide | |
| WO2014094157A1 | A method and apparatus for melting aluminum oxide | |
| CN107572569A | The method for manufacturing high-purity alpha-alumina |