| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 38 | |
| #2 | United Kingdom | 2 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Transport | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements | |
| #5 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roland Chilton | 16 |
| #2 | Zimmermann Paul G | 10 |
| #3 | Boland Joseph J | 5 |
| #4 | Hayes Frank A | 4 |
| #5 | Korvin-Kroukovsky Boris V | 3 |
| #6 | Young Harold H | 2 |
| #7 | Uppercu Inglis M | 2 |
| #8 | King Alexander H | 2 |
| #9 | Douglas William H | 1 |
| #10 | De Pew Chester C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1950350A | Vibration dampener | |
| US1850528A | Lubricating system | |
| US1847553A | Variable speed transmission | |
| US1885222A | Lubricating system | |
| US1802330A | Valve mechanism | |
| US1808342A | Airplane control | |
| US1803498A | Airplane control | |
| US1887543A | Variable pitch propeller | |
| US1803459A | Valve gear | |
| GB257814A | Improvements in gaskets for pressure containers | |
| GB258064A | Improvements in engine starter | |
| US1564826A | Float structure | |
| US1562080A | Universal joint | |
| US1608086A | Vehicle wheel-carrying mechanism | |
| US1527335A | Cushioned-gear drive | |
| US1561506A | Engine starter | |
| US1537525A | Piston | |
| US1568544A | Torsion meter | |
| US1579906A | Pontoon | |
| US1579905A | Aeroplane structure |