Inventor · Derby, GB

John J A Cullen

22Patents
5h-index
24Co-inventors
65Inventor score

Filing activity: Mar 26, 2002 → Oct 13, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US6794781B2 Compact electrical machine Emerging Cross-Sectional Technologies 96 Expired
US8487500B2 Cooling arrangement of an electrical machine Electricity 12 Active
US7612463B2 Generator Electricity 11 Active
US10378445B2 Gas turbine engine fuel system Electricity 7 Active
US9853512B2 Stator winding arrangement for an electrical machine having series connected short and long windings Emerging Cross-Sectional Technologies 5 Active
US6765328B2 Shaft bearings Mechanical Engineering; Lighting; Heating 5 Expired
US7372676B2 Motor coil-shorting detecting unit Electricity 4 Expired
US7554301B2 Fault current limiting in an electrical power network Electricity 3 Active
US6888439B2 Electrical conductor winding and a method of manufacturing an electrical conductor winding Emerging Cross-Sectional Technologies 3 Expired
US8653797B2 Synchronous electrical machine Electricity 3 Active
US8908336B2 Fault tolerant electrical machine Electricity 2 Active
US7830105B2 Electrical machine Electricity 2 Active
US10485145B2 Cooling system for electrical equipment Emerging Cross-Sectional Technologies 2 Active
US6680667B2 Electrical conductor winding and a method of manufacturing an electrical conductor winding Emerging Cross-Sectional Technologies 2 Expired
US8648575B2 Electrical machine safety system Electricity 1 Active
US7521901B2 Electrical power stabilisation Electricity 1 Active
US10680503B2 Active screening for an electrical machine Emerging Cross-Sectional Technologies 0 Active
US10487241B2 Methods of encapsulating electrical windings in an encapsulant composition Emerging Cross-Sectional Technologies 0 Active
US7215054B2 Magnetic bearing Mechanical Engineering; Lighting; Heating 0 Active
US9236830B2 Electrical machine Physics 0 Active
US7138739B2 Magnetic bearing Mechanical Engineering; Lighting; Heating 0 Expired
US9018805B2 Superconducting machines Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.