| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Austria | 3 | |
| #3 | Denmark | 3 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Foods and drinks | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines | |
| #5 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Foods | |
| #3 | Unspecified technologies | |
| #4 | Laundering textiles | |
| #5 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Paul John T H | 2 |
| #2 | Birkholz Richard | 2 |
| #3 | Wright Walter B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US860244A | Filter. | |
| US849017A | Filter. | |
| US781860A | Pasteurizing apparatus. | |
| US722443A | Pressure-regulating device for pumps. | |
| US787971A | Apparatus for treating filter-pulp. |