Inventor · Hemel Hempstead, GB

Andrew Stevenson

28Patents
10h-index
33Co-inventors
75Inventor score

Filing activity: Dec 4, 1978 → Feb 5, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US7689305B2 System for audio-related device communication Electricity 337 Active
US8473844B2 Audio related system link management Electricity 152 Active
US5118086A Elastomeric spring with non-linear force/deflection characteristics Mechanical Engineering; Lighting; Heating 31 Expired
US8249071B2 Audio related system communication protocol Electricity 27 Active
US7742606B2 System for audio related equipment management Electricity 26 Active
US4817921A Composite spring Mechanical Engineering; Lighting; Heating 21 Expired
US7965529B2 Voltage source inverter and medium voltage pre-charge circuit therefor Electricity 15 Active
US5561292A Mass spectrometer and electron impact ion source thereof Electricity 13 Expired
USRE33696E Composite spring General 11 Expired
US10465908B2 Combustion staging system Emerging Cross-Sectional Technologies 10 Active
US4422022A Speed control for truck Electricity 9 Expired
US11215121B2 Fuel spray nozzle Mechanical Engineering; Lighting; Heating 8 Active
US4238810A Forced commutation precipitator circuit Performing Operations; Transporting 7 Expired
US7725826B2 Audio-related system node instantiation Electricity 6 Active
US9581088B2 System for performing staging control of a multi-stage combustor Mechanical Engineering; Lighting; Heating 5 Active
US10927757B2 Rotor bow management Emerging Cross-Sectional Technologies 4 Active
US8078298B2 System for node structure discovery in an audio-related system Electricity 4 Active
US4291263A Amortisseur winding protection system Electricity 4 Expired
US6288338A Bus isolation system Electricity 3 Expired
US4958380A Fault current limiter for DC motor drive system Electricity 2 Expired
US6133533A Bus isolation system Electricity 2 Expired
US4556826A Inching supply torque control Electricity 1 Expired
US11959597B2 Pipeline sensing system Mechanical Engineering; Lighting; Heating 0 Active
US9689513B2 Tubular bodies and methods of forming same Emerging Cross-Sectional Technologies 0 Active
US8029691B2 Refrigerant Chemistry; Metallurgy 0 Active

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