CHAPMAN CHARLES WALLACE has a total of 11 patent applications. Its first patent ever was published in 1947. It filed its patents most often in Canada, Germany and Denmark. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and mechanical elements are CHARLES WALLACE CHAPMAN, PARK GILE JUN YANG and WISHART JOHN DONALD.
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chapman Charles Wallace | 9 |
| #2 | Charles Wallace Chapman | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE818708C | Internal combustion engine with self-ignition | |
| CA452757A | Rotary compressor and exhauster | |
| CA477159A | Internal combustion engines of the compression ignition type | |
| CA454702A | Friction clutch, brake and coupling |