SELLMAN DONALD L has a total of 12 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Canada, United States and Germany. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and chemical engineering are VANDERHYE ROBERT A, STORK PROD ENG and CYGNUS POWER CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 6 | |
#2 | United States | 4 | |
#3 | Germany | 1 | |
#4 | United Kingdom | 1 |
# | Industry | |
---|---|---|
#1 | Engines, pumps and turbines | |
#2 | Environmental technology | |
#3 | Chemical engineering | |
#4 | Machines |
# | Name | Total Patents |
---|---|---|
#1 | Sellman Donald L | 10 |
#2 | L Sellman Donald | 1 |
#3 | Sellman Donald L South Rd Stre | 1 |
Publication | Filing date | Title |
---|---|---|
CA1056732A | Wind motors | |
US4017204A | Wind motors | |
US3986786A | Wind motors | |
US3988072A | Wind motors | |
US4129106A | Vapor lock and fuel vaporization controls | |
CA960239A | Amusement spinning device | |
GB1158531A | Removable Element Type Sediment Trap for Liquid Flow Lines | |
CA852564A | Removable element type filter traps | |
CA843667A | Fish hook hone | |
CA769864A | Stropper-hones | |
CA252119A | Rotary engine |