| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 2 | |
| #3 | Germany | 1 | |
| #4 | France | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Packaging and shipping | |
| #3 | Basic materials chemistry | |
| #4 | Chemical engineering | |
| #5 | Machines | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices | |
| #2 | Containers for goods storage | |
| #3 | Separation | |
| #4 | Lubricating | |
| #5 | Cyclones | |
| #6 | Soaps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kehle Ottmar A | 5 |
| #2 | Bowser Percy L | 2 |
| #3 | Flammang John | 2 |
| #4 | Wilkinson Arthur W | 2 |
| #5 | Riegel Clarence W | 1 |
| #6 | Wilson William B | 1 |
| #7 | Fehr Charles M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2204017A | Filter | |
| US2202072A | Sanding and rubbing device | |
| GB486785A | Improvement in a rubbing machine | |
| US2113694A | Rubbing machine | |
| US2187241A | Oiler for air tools | |
| US2123426A | Rubbing machine | |
| US1902316A | Container | |
| US1701937A | Container for corrosive liquids such as hydrofluoric acid | |
| US1870560A | Detergent material and process of making the same | |
| CA264321A | Piston mould | |
| CA278417A | Piston |