Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Balu Balakrishnan — 206 Patents

PIPower Integrations: 204 patents #1 of 206Top 1%
Saratoga, CA: #13 of 2,933 inventorsTop 1%
California: #519 of 386,348 inventorsTop 1%
Overall (All Time): #3,153 of 4,157,543Top 1%
206 Patents All Time

Issued Patents All Time

Showing 101–125 of 206 patents

Patent #TitleCo-InventorsDate
7596005 Method and apparatus providing a multi-function terminal for a power supply controller Alex B. Djenguerian, Leif Lund 2009-09-29
7585719 Integrated circuit with multi-length output transistor segments 2009-09-08
7521908 Method and apparatus for reducing audio noise in a switching regulator Alex B. Djenguerian, Kent Wong 2009-04-21
7489491 Method and apparatus for fault condition protection of a switched mode power supply 2009-02-10
7486062 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power Alex B. Djenguerian, David Michael Hugh Matthews 2009-02-03
7477534 Off-line converter with digital control Alex B. Djenguerian, Leif Lund 2009-01-13
7471530 Method and apparatus to reduce audio frequencies in a switching power supply Arthur B. Odell 2008-12-30
7466170 Method and apparatus for simplifying the control of a switch 2008-12-16
7446988 Fault condition protection Alex B. Djenguerian, Leif Lund 2008-11-04
7425834 Method and apparatus to select a parameter/mode based on a time measurement David Michael Hugh Matthews, Alex B. Djenguerian, Kent Wong 2008-09-16
7400483 Method and apparatus providing final test and trimming for a power supply controller Alex Dienguerian, Erdem Bircan 2008-07-15
7400122 Method and apparatus for reducing audio noise in a switching regulator Alex B. Djenguerian, Kent Wong 2008-07-15
7391088 Integrated circuit with multi-length output transistor segments 2008-06-24
7369418 Method and apparatus for a switch mode power supply that generates a high pulse width modulation gain while maintaining low noise sensitivity 2008-05-06
7352232 Method and apparatus for extending the size of a transistor beyond one integrated circuit 2008-04-01
7345462 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power Alex B. Djenguerian, David Michael Hugh Matthews 2008-03-18
7310048 Method and apparatus for sensing a current in a circuit Arthur B. Odell 2007-12-18
7308754 Methods for trimming electrical parameters in an electrical circuit 2007-12-18
7301319 Methods and apparatus for maintaining an approximate constant current output characteristic in a switched mode power supply Alex B. Djenguerian, Kent Wong, David Michael Hugh Matthews, Erdem Bircan 2007-11-27
7253997 Method and apparatus providing a multi-function terminal for a power supply controller Alex B. Djenguerian, Leif Lund 2007-08-07
7253059 Method of forming an integrated circuit with multi-length power transistor segments 2007-08-07
7248029 Off-line converter with digital control Alex B. Djenguerian, Leif Lund 2007-07-24
7227733 Method and apparatus providing final test and trimming for a power supply controller Alex B. Djenguerian, Erdem Bircan 2007-06-05
7220629 Method of manufacturing an integrated circuit with multilength power transistor elements 2007-05-22
7218495 Method and apparatus for fault condition protection of a switched mode power supply 2007-05-15