Inventor · Pittsburgh, PA, US

Michael B. Brennen

35Patents
15h-index
16Co-inventors
78Inventor score

Filing activity: Oct 3, 1974 → Nov 2, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US4651265A Active power conditioner system Emerging Cross-Sectional Technologies 82 Expired
US5384696A Active power line conditioner with fundamental negative sequence compensation Emerging Cross-Sectional Technologies 49 Expired
US3999117A Method and control apparatus for static VAR generator and compensator Emerging Cross-Sectional Technologies 39 Expired
US6952086B1 Linear position sensing system and coil switching methods for closed-loop control of large linear induction motor systems Electricity 37 Expired
US4599553A Malfunction detector for static VAR controllers Emerging Cross-Sectional Technologies 36 Expired
US4811236A Transmission line voltage detector for static VAR generator Emerging Cross-Sectional Technologies 36 Expired
US5355025A Active power line conditioner with synchronous transformation control Emerging Cross-Sectional Technologies 33 Expired
US5287288A Active power line conditioner with low cost surge protection and fast overload recovery Emerging Cross-Sectional Technologies 30 Expired
US5355295A Series-parallel active power line conditioner utilizing temporary link energy boosting for enhanced peak voltage regulation capability Emerging Cross-Sectional Technologies 30 Expired
US5351178A Active power line conditioner with a derived load current fundamental signal for fast dynamic response Emerging Cross-Sectional Technologies 28 Expired
US5351181A Low cost active power line conditioner Emerging Cross-Sectional Technologies 25 Expired
US4047097A Apparatus and method for transient free energization and deenergization of static VAR generators Emerging Cross-Sectional Technologies 24 Expired
US4719402A VAR generator system with minimal standby losses Emerging Cross-Sectional Technologies 23 Expired
US5351180A Highly fault tolerant active power line conditioner Emerging Cross-Sectional Technologies 23 Expired
US3989999A Load saving over current apparatus for shutdown in a reactive power generator Emerging Cross-Sectional Technologies 16 Expired
US5319535A Active power line conditioner having capability for rejection of common-mode disturbances Emerging Cross-Sectional Technologies 14 Expired
US4234842A Voltage regulator and flicker compensator Emerging Cross-Sectional Technologies 14 Expired
US5349517A Active power line conditioner utilizing harmonic frequency injection for improved peak voltage regulation Emerging Cross-Sectional Technologies 13 Expired
US4188573A Static VAR generator with time-related-error minimizer Emerging Cross-Sectional Technologies 12 Expired
US4172234A Static VAR generator compensating control circuit and method for using same Emerging Cross-Sectional Technologies 11 Expired
US4356441A Voltage regulator utilizing a static VAR generator with half period averaging and saturating type firing angle control Emerging Cross-Sectional Technologies 11 Expired
US4204151A Static VAR generator with non-linear frequency dependent dynamic gain adjuster Emerging Cross-Sectional Technologies 10 Expired
US5319534A Series-parallel active power line conditioner utilizing reduced-turns-ratio transformer for enhanced peak voltage regulation capability Emerging Cross-Sectional Technologies 9 Expired
US3989991A Method and circuit for the derivation of an analog slip frequency signal of an induction motor in a tachometerless motor drive Electricity 9 Expired
US4644248A Line fault tolerant synchronous timing reference generator for static VAR generators Emerging Cross-Sectional Technologies 9 Expired

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