| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 | |
| #2 | Switzerland | 3 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Materials and metallurgy | |
| #5 | Machine tools | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Vehicle wheels | |
| #2 | Clutches and brakes | |
| #3 | Unspecified technologies | |
| #4 | Tools for connecting or disengaging | |
| #5 | Vehicle brake control systems | |
| #6 | Foundry moulding | |
| #7 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keller Charles G | 24 |
| #2 | Charles G Keller | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2377014A | Brake adjusting mechanism | |
| US2164772A | Vehicle wheel | |
| US2148755A | Brake drum | |
| US2012011A | Brake adjusting mechanism | |
| US2010238A | Vehicle wheel | |
| US1952076A | Vehicle wheel | |
| US1908024A | Hub adapter | |
| US1896821A | Vehicle wheel | |
| US1893947A | Vehicle wheel | |
| US1768960A | Molding machine | |
| US1827793A | Vehicle wheel | |
| US1896794A | Vehicle wheel | |
| US1783432A | Vehicle wheel-hub construction | |
| US1827792A | Vehicle wheel | |
| US1768959A | Brake drum | |
| US1947091A | Brake | |
| US1952075A | Vehicle wheel | |
| US1827790A | Vehicle wheel | |
| US1804938A | Vehicle wheel | |
| US1804937A | Vehicle wheel |