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 76–100 of 206 patents

Patent #TitleCo-InventorsDate
8194423 Method and apparatus to reduce audio frequencies in a switching power supply Arthur B. Odell 2012-06-05
8184413 Fault condition protection Alex B. Djenguerian, Leif Lund 2012-05-22
8115457 Method and apparatus for implementing a power converter input terminal voltage discharge circuit David Kung, Raymond Kenneth Orr, David Michael Hugh Matthews 2012-02-14
8077483 Method and apparatus for sensing multiple voltage values from a single terminal of a power converter controller Alex B. Djenguerian 2011-12-13
8063672 Method and apparatus for simplifying the control of a switch 2011-11-22
8035945 Method and apparatus providing final test and trimming for a power supply controller Alex B. Djenguerian, Erdem Bircan 2011-10-11
8031491 Method and apparatus for on/off control of a power converter Alex B. Djenguerian, Erdem Bircan, David Michael Hugh Matthews 2011-10-04
8013584 Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply Alex B. Djenguerian, Kent Wong, David Michael Hugh Matthews 2011-09-06
7974112 Off-line converter with digital control Alex B. Djenguerian, Leif Lund 2011-07-05
7965524 Method and apparatus to reduce audio frequencies in a switching power supply Arthur B. Odell 2011-06-21
7881032 Method and apparatus providing final test and trimming for a power supply controller Alex B. Djenguerian, Erdem Bircan 2011-02-01
7881027 Fault condition protection Alex B. Djenguerian, Leif Lund 2011-02-01
7876587 Method and apparatus providing a multi-function terminal for a power supply controller Alex B. Djenguerian, Leif Lund 2011-01-25
7875962 Package for a power semiconductor device Brad L. Hawthorne, Stefan Bäurle 2011-01-25
7834605 Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply Alex B. Djenguerian, Kent Wong, David Michael Hugh Matthews 2010-11-16
7804305 Method and apparatus to select a parameter/mode using a capacitor of a feedback loop of the power supply David Michael Hugh Matthews, Alex B. Djenguerian, Kent Wong 2010-09-28
7773350 Fault condition protection Alex B. Djenguerian, Leif Lund 2010-08-10
7764520 Method and apparatus for on/off control of a power converter Alex B. Djenguerian, Erdem Bircan, David Michael Hugh Matthews 2010-07-27
7733673 Method and apparatus to reduce audio frequencies in a switching power supply Arthur B. Odell 2010-06-08
7710705 Method and apparatus providing final test and trimming for a power supply controller Alex B. Djenguerian, Erdem Bircan 2010-05-04
7701186 Method and apparatus for reducing audio noise in a switching regulator Alex B. Djenguerian, Kent Wong 2010-04-20
7663852 Output feedback and under-voltage detection system Alex B. Djenguerian, Leif Lund 2010-02-16
7656304 Method and apparatus for sensing a current in a circuit Arthur B. Odell 2010-02-02
7646184 Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply Alex B. Djenguerian, Kent Wong, David Michael Hugh Matthews 2010-01-12
7609535 Method and apparatus for providing input EMI filtering in power supplies 2009-10-27