| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United States | 3 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Supplying combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gottfried Frei | 2 |
| #2 | Near Munich | 1 |
| #3 | George Ashton | 1 |
| #4 | Otto Baumgartner | 1 |
| #5 | Georg Ashton | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1811288A | Carburetor | |
| US1778444A | Carburetor | |
| GB274078A | Improvements in or relating to carburetters | |
| GB263140A | Improvements in or relating to carburettors | |
| US1759294A | Carburetor | |
| DE489402C | Carburetor | |
| DE481157C | Injection carburetor with main and transition injection openings | |
| DE517457C | Injection carburetor | |
| DE517458C | Device for determining the carburetor throttle on aircraft engines |