Patent assignee · US · COMPANY

Superior Electron, LLC

76Patents
6Active
76Granted
38Portfolio score

Filing activity: May 30, 1974 → Dec 13, 2017 · 1 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US4868477A Method and apparatus for controlling torque and torque ripple in a variable reluctance motor Electricity 72 Expired
US4689023A Programmable electrical connector Emerging Cross-Sectional Technologies 66 Expired
US4739201A Means to reduce harmonic torque in electromagnetic machines Electricity 66 Expired
US4990809A Variable reluctance motor Electricity 56 Expired
US4558275A Line voltage monitor system Physics 49 Expired
US4048530A Electric motor with plastic encapsulated stator Electricity 34 Expired
US4406958A Stepping motors with disc magnet Electricity 32 Expired
US4516048A Stator with nonuniformly spaced teeth for rotating electromagnetic device Electricity 25 Expired
US4081736A Open loop motor stabilization method and circuit Electricity 23 Expired
US4866382A Magnetic rotary encoder system having a multi-element magnetoresistive sensor Electricity 22 Expired
US4295083A Pulsed energy stepping motor power control unit Electricity 20 Expired
USD281401S Detector module for a line monitor or the like General 19 Expired
US4763052A Method and means for driving a brushless D.C. motor Physics 19 Expired
US4518907A Digital motor control method and means Electricity 19 Expired
US3968416A Motor control for a stepping motor Electricity 17 Expired
USD311899S Enclosure for portable voltage conditioning equipment and the like General 16 Expired
US4127801A Power chopper supply for a bifilar wound stepping motor Electricity 16 Expired
US4794511A Apparatus and method for generating two-phase signals for use with a resolver to digital converter Electricity 16 Expired
US4733117A Reluctance synchro/resolver Electricity 16 Expired
US4792709A Winding for operation of a three-phase stepping motor from a two-phase drive Electricity 15 Expired
US4066944A Motion control system with incremental data commands Physics 15 Expired
US4263547A Test probe and terminal Electricity 14 Expired
US4642494A Means to improve performance of electric motors Electricity 14 Expired
US4853631A Magnetoresistive sensor having inter-leaved magnetoresistive elements for detecting encoded magnetic information Physics 14 Expired
US4119901A Pulse to step motor stabilizing circuit Electricity 13 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.