| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 8 | |
| #2 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Foods and drinks | |
| #3 | Materials and metallurgy | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Bakers' ovens | |
| #3 | Unspecified technologies | |
| #4 | Alkali metal compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holland Arthur A | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US3190451A | Endless belt filter | |
| US2963161A | Filtering apparatus | |
| US2688406A | Filtering apparatus | |
| US2578355A | Dehydration of mineral salts by drum drier | |
| US1921160A | Cone making machine | |
| US1802017A | Mold for ice-cream cones | |
| CA745870A | Endless belt filter | |
| CA528036A | Filtering apparatus | |
| CA629492A | Filtering apparatus | |
| CA652816A | Endless belt filter | |
| CA498190A | Dehydration of mineral salts and the like | |
| CA326059A | Cone making machine | |
| CA342907A | Humidifier | |
| CA307087A | Mould for ice cream cones |