| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 4 | |
| #3 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Transport | |
| #3 | Mechanical elements | |
| #4 | Furniture and games | |
| #5 | Audio-visual technology | |
| #6 | Packaging and shipping | |
| #7 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Cyclically operating valves | |
| #2 | Supplying combustion engines | |
| #3 | Vehicle suspension arrangements | |
| #4 | Toys | |
| #5 | Lighter-than air aircraft | |
| #6 | Gearing | |
| #7 | Containers for goods storage | |
| #8 | Advertising | |
| #9 | Clutches and brakes | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dunn William C | 18 |
| #2 | Nies Frederick Herold | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2240497A | Carburetor | |
| US2079436A | Carburetor | |
| US1880343A | Means for adjusting vehicle springs | |
| US1804405A | Spring suspension for vehicles | |
| US1773971A | Slide-valve motor | |
| US1761255A | Fluid-transmission mechanism | |
| US1706569A | Internal-combustion engine | |
| US917564A | Switch. | |
| CA106080A | Advertisement for effervescent liquids | |
| US877307A | Air-ship. | |
| US842830A | Device for advertising effervescent liquids. | |
| US673515A | Toy trick weighing-machine. | |
| US673864A | Mailing-envelop. | |
| US655697A | Bicycle. | |
| CA57710A | Velocipede frame | |
| CA264563A | Power transmission | |
| CA29555A | Game |