John William Kesterson

This inventor holds 54 USPTO granted patents and 1 published patent application and 3 EPO patents, primarily in Switching Power Conversion (CPC class H02M). Top assignees: Dialog Semiconductor Gmbh, Iwatt Inc., Dialog Semiconductor (UK) Limited. Active years: 1985-2021.

USPTO Granted Patents = 54 (Patent Applications = 1)

% Patents Active = 98.1

EPO Patents = 3

Average Co-Inventor Count = 3.2

ph-index = 12

Forward Citations = 555(Granted Patents)

Forward Citations (Not Self Cited) = 536(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Austin, TX (US) (1985)
Fairfield, IA (US) (2006)
San Jose, CA (US) (2008 - 2014)
Campbell, CA (US) (2015 - 2020)
Seaside, CA (US) (2013 - 2021)
Chandler, AZ (US) (2021)
Scottsdale, AZ (US) (2021)

Company Filing History:

30 out of 511

Dialog Semiconductor Gmbh

Dialog Semiconductor (UK) Limited

patents

4. 2 out of 4

Dialog Integrated Circuits (Tianjin) Limited

patents

5. 2 out of 834,411

Other

patents

where one patent can have more than one assignee

Years Active: 1985-2021

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Areas of Expertise:

Buck Converters

Data Communication

Noise Reduction

LED Drivers

Power Supply Regulation

Adaptive Control

EMI Blocking

Load Detection

Transistor Saturation

Frequency Hopping

Voltage Feedback

Current Meter

54 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10998818 - Asynchronous dropout transition for multi-level and single-level buck converters (2021-05-04),

2. 10983152 - USB data pin impedance detection (2021-04-20),

3. 10958174 - Light load detector circuit for inductive DC-DC converter (2021-03-23),

4. 10685687 - Secure memory element for logical state storage (2020-06-16),

5. 10571499 - USB data pin impedance detection (2020-02-25),

6. 10560025 - Frequency hopping for reducing switching power converter noise (2020-02-11),

7. 10250046 - Electromagnetic interference blocking system (2019-04-02),

8. 10230303 - Isolated switching power converter with data communication between primary and secondary sides (2019-03-12),

9. 9970979 - MOS transistor saturation region detector (2018-05-15),

10. 9917519 - Frequency hopping for reducing switching noise in a switching power converter (2018-03-13),

11. 9772367 - Load connection detection (2017-09-26),

12. 9625505 - Line frequency detector (2017-04-18),

13. 9559597 - Detecting open connection of auxiliary winding in a switching mode power supply (2017-01-31),

14. 9525352 - Magnitude adjustment of the drive signal of a switching transistor of a switching power converter (2016-12-20),

15. 9473033 - Programming of a two terminal device (2016-10-18),

Title: The Innovative Journey of John William Kesterson

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Conclusion: John William Kesterson's relentless pursuit of innovation and his passion for creating solutions that improve lives have solidified his reputation as a trailblazing inventor in Seaside, CA, and beyond. His work continues to inspire future generations of inventors to push the boundaries of what is possible in the world of technology.