| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 40 | |
| #2 | Germany | 3 | |
| #3 | Austria | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Transport | |
| #5 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Norton Raymond J | 6 |
| #2 | Statz Robert J | 5 |
| #3 | Graham Leon L | 4 |
| #4 | Semmes Harry H | 3 |
| #5 | Dodge Adiel Y | 3 |
| #6 | Parks Frederick W | 2 |
| #7 | Donavan Paul J | 2 |
| #8 | Rossetter Charles F | 2 |
| #9 | Kraft Harry B | 2 |
| #10 | Flood Oscar S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE678968C | Test stand for checking the effectiveness of the brakes and the position of the wheels of motor vehicles | |
| US1986605A | Testing apparatus for aeroplanes | |
| US1977970A | Portable stand for sound measuring devices | |
| US2022057A | Apparatus for testing brakes | |
| US2018451A | Brake tester | |
| US1872127A | Adjustment of brakes | |
| US1932285A | Brake testing apparatus | |
| US1987706A | Brake tester | |
| US1890219A | Method for testing automobile brakes | |
| US1958390A | Automobile brake testing device | |
| US1957455A | Automobile brake testing device | |
| US1981474A | Automatic brake tester | |
| US1913734A | Burnishing mechanism | |
| US1981476A | Automobile wheel gauge | |
| US1963216A | Brake testing apparatus | |
| US1969861A | Shoe burnisher | |
| US1918020A | Brake shoe burnisher | |
| US1985515A | Brake testing structure | |
| US1950640A | Foot pedal jack | |
| US1987704A | Pedal depressor |