Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Leif Lund — 81 Patents

PIPower Integrations: 81 patents #4 of 206Top 2%
San Jose, CA: #402 of 32,062 inventorsTop 2%
California: #3,390 of 386,348 inventorsTop 1%
Overall (All Time): #22,096 of 4,157,543Top 1%
81 Patents All Time
Leif Lund has been granted 81 US patents while listed as an inventor at Power Integrations. The first was granted in 1993 and the most recent in May 2019. Leif Lund ranks #22,096 of 4,157,543 US inventors in our database (top 0.53%). Patent records list Leif Lund in San Jose, CA, US.

Patents per Year

Patents granted per year, 1993 to 2019Bar chart with a peak of 9 patents in 2002.peak 91993: 1 patents19932000: 2 patents2001: 5 patents2002: 9 patents20022003: 4 patents2004: 3 patents2005: 2 patents20052006: 2 patents2007: 2 patents2008: 1 patents20082009: 2 patents2010: 2 patents2011: 9 patents20112012: 9 patents2013: 6 patents2014: 6 patents20142015: 2 patents2016: 6 patents2017: 2 patents20172018: 4 patents2019: 2 patents2019

Issued Patents All Time

Showing 1–25 of 81 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10284100 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter Alex B. Djenguerian 2019-05-07 $14,175,000
10243471 Power converter controller with multiple power sources Alex B. Djenguerian, Sheng Liu 2019-03-26 $4,262,000
10135343 Load responsive jitter Alex B. Djenguerian, Peter Vaughan 2018-11-20 $5,624,000
10079544 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter Alex B. Djenguerian 2018-09-18 $6,086,000
9985542 Controller IC with zero-crossing detector and capacitor discharge switching element David Kung 2018-05-29 $7,846,000
9979296 Load responsive jitter Alex B. Djenguerian, Peter Vaughan 2018-05-22 $15,141,000
9774268 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter Alex B. Djenguerian 2017-09-26 $7,474,000
9543821 MOSFET driver with pulse timing pattern fault detection and adaptive safe operating area mode of operation Arthur B. Odell, Sujit Banerjee 2017-01-10 $2,164,000
9490706 Power supply controller with input voltage compensation for efficiency and maximum power output Balu Balakrishnan, Alex B. Djenguerian 2016-11-08 $8,593,000
9484822 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter Alex B. Djenguerian 2016-11-01 $2,418,000
9455621 Controller IC with zero-crossing detector and capacitor discharge switching element David Kung 2016-09-27 $10,683,000
9450478 Load responsive jitter Alex B. Djenguerian, Peter Vaughan 2016-09-20 $10,491,000
9331587 Power converter controller with multiple power sources Alex B. Djenguerian, Sheng Liu 2016-05-03 $1,150,000
9276479 Receive circuit for use in a power converter Alex B. Djenguerian, Sheng Liu 2016-03-01 $4,177,000
9166575 Low threshold voltage comparator Balu Balakrishnan, Alex B. Djenguerian 2015-10-20 $1,995,000
8970290 Method and apparatus for implementing slew rate control using bypass capacitor David Kung 2015-03-03 $7,221,000
8913407 Method and apparatus to regulate an output voltage of a power converter at light/no load conditions Alex B. Djenguerian, William M. Polivka 2014-12-16 $12,672,000
8908395 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter Alex B. Djenguerian 2014-12-09 $4,378,000
8737091 Variable time clamp for a power supply controller 2014-05-27 $6,347,000
8729882 Method and apparatus for implementing slew rate control using bypass capacitor David Kung 2014-05-20 $4,031,000
8710817 Off-line converter with digital control Balu Balakrishnan, Alex B. Djenguerian 2014-04-29 $8,816,000
8669751 Power supply controller with input voltage compensation for efficiency and maximum power output Balu Balakrishnan, Alex B. Djenguerian 2014-03-11 $12,364,000
8542468 Fault condition protection Balu Balakrishnan, Alex B. Djenguerian 2013-09-24 $3,884,000
8498132 Method and apparatus for regulating a diode conduction duty cycle Chan Woong Park 2013-07-30 $4,135,000
8482938 Method and apparatus providing a multi-function terminal for a power supply controller Balu Balakrishnan, Alex B. Djenguerian 2013-07-09 $9,002,000