| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Transport | |
| #3 | Mechanical elements | |
| #4 | Engines, pumps and turbines | |
| #5 | Civil engineering | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Vehicle servicing | |
| #3 | Pipes | |
| #4 | Unspecified technologies | |
| #5 | Vehicle tyre repairing | |
| #6 | Venting or aerating devices | |
| #7 | Machines for liquids | |
| #8 | Dairy products production | |
| #9 | Vehicle transmission mounting | |
| #10 | Wing fittings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ewald Arno A | 13 |
| #2 | Ewald Hermann A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1604813A | Air station | |
| US1789306A | Tire-filling valve head | |
| US1629265A | Stabilizing device | |
| US1414559A | Tire-inflating device | |
| US1427450A | Air-supply station | |
| US1344028A | Gasket for inflation-tube connections | |
| US1361758A | Hose-coupling | |
| US1204553A | Foot-accelerator. | |
| US1183361A | Muffler cut-out. | |
| US988182A | Yieldable gearing. | |
| US775297A | Rotary motor. | |
| US693850A | Cow-milker. | |
| CA254286A | Air supply station |