| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Water treatment | |
| #3 | Chemical or physical processes | |
| #4 | Unspecified technologies | |
| #5 | Containers for goods storage | |
| #6 | Milling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Krause Arthur E | 13 |
| #2 | E. Krause Arthur | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1441860A | Record container | |
| US1265678A | Reboiler and condensate-purifier. | |
| US1198039A | Filter and filtering process. | |
| US1145372A | Filter. | |
| US1111471A | Strainer. | |
| US1111470A | Strainer. | |
| US1056800A | Filtering material. | |
| US839772A | Filter. | |
| CA79621A | Method of removing oil and oily matter from water | |
| US729775A | Method of removing oil or oily matter from water. | |
| US647099A | Filter. | |
| US630363A | Filter. | |
| US881082A | Apparatus for purifying water and steam and for extracting oil and grease. |