Patent assignee · CH · COMPANY

JOHNSON ELECTRIC S.A.

514Patents
391Active
514Granted
59Portfolio score

Filing activity: Jan 18, 1989 → Aug 14, 2017 · 89 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US9385640B2 Control circuit for a DC motor Electricity 439 Active
US7971937B2 Seat adjuster assembly Mechanical Engineering; Lighting; Heating 92 Active
US5895990A Miniature motor Electricity 67 Expired
US8680723B2 Linear actuator Electricity 47 Active
US7215052B2 Brushless D.C. motor Emerging Cross-Sectional Technologies 43 Expired
US10199886B2 Single phase brushless motor and power tool utilizing same Electricity 42 Active
US5196750A Electric motors with electromagnetic interference reduction Electricity 40 Expired
US8621990B2 Household appliance Electricity 38 Active
USD325560S Electric motor General 37 Expired
US7394174B2 Brushless D.C. motor Emerging Cross-Sectional Technologies 36 Expired
US5006742A Splashproof cover for an electric motor Electricity 36 Expired
US5528095A Permanent magnet rotor Electricity 36 Expired
USD511138S1 Electric motor General 34 Expired
US5449963A Armature end protector for a wound rotor Electricity 34 Expired
US5488260A Encapsulated magnets in a permanent magnet rotor Emerging Cross-Sectional Technologies 27 Expired
US4983866A Encapsulated armature for electric motor Emerging Cross-Sectional Technologies 27 Expired
USD601958S1 Electric motor General 26 Expired
USD588862S1 Food waste disposal unit General 24 Expired
US9166448B2 Kitchen appliance Electricity 22 Active
USD579869S1 Electric motor General 22 Expired
US5294852A Thermally protected electric motor Electricity 21 Expired
US5780952A Brush assembly for electric motor Electricity 21 Expired
US5386167A Planar carbon segment commutator Emerging Cross-Sectional Technologies 20 Expired
US5442849A Method of making a planar carbon segment commutator Emerging Cross-Sectional Technologies 20 Expired
US6806607B2 Electric motor Emerging Cross-Sectional Technologies 19 Expired

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