Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David Kung — 40 Patents

PIPower Integrations: 33 patents #20 of 206Top 10%
NSNational Semiconductor: 3 patents #635 of 2,238Top 30%
University Of Texas System: 2 patents #1,567 of 6,559Top 25%
JGJulius Blum Gmbh: 1 patents #85 of 148Top 60%
Foster City, CA: #73 of 2,058 inventorsTop 4%
California: #11,329 of 386,348 inventorsTop 3%
Overall (All Time): #79,552 of 4,157,543Top 2%
40 Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
8299772 Method and apparatus for implementing slew rate control using bypass capacitor Leif Lund 2012-10-30
8278994 Temperature independent reference circuit Leif Lund 2012-10-02
8139384 Method and apparatus for input charge control of a power supply William M. Polivka 2012-03-20
8125265 Temperature independent reference circuit Leif Lund 2012-02-28
8115457 Method and apparatus for implementing a power converter input terminal voltage discharge circuit Balu Balakrishnan, Raymond Kenneth Orr, David Michael Hugh Matthews 2012-02-14
8063622 Method and apparatus for implementing slew rate control using bypass capacitor Leif Lund 2011-11-22
7999606 Temperature independent reference circuit Leif Lund 2011-08-16
7893754 Temperature independent reference circuit Leif Lund 2011-02-22
7448703 Retaining and adjustment device for movable furniture parts 2008-11-11
7426716 Recovery and representation of object interaction in an object oriented program Manish Jodhani 2008-09-16
D462947 Microphone 2002-09-17
5045800 Pulse width modulator control circuit 1991-09-03
4591743 Temperature compensated current sensing circuit 1986-05-27
4528463 Bipolar digital peripheral driver transistor circuit 1985-07-09
4490631 Totem pole/open collector selectable output circuit 1984-12-25