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Los Gatos, CA, United States of America

Iwatt Inc.

USPTO Granted Patents = 57

% Expired Patents = 19.3

Forward Citations = 1,975

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46 inventors (with patents filed for the assignee):

Junjie Zheng (23 out of 53 patents)

John William Kesterson (19 out of 54 patents)

Mark D Telefus (19 out of 105 patents)

4. Dickson T Wong (10 out of 24 patents)

5. Arthur J Collmeyer (9 out of 12 patents)

6. Mark Robert Muegge (9 out of 9 patents)

7. Harry Rodriguez (8 out of 68 patents)

8. Anatoly Shteynberg (8 out of 70 patents)

9. Liang Yan (7 out of 32 patents)

10. Xuecheng Jin (7 out of 16 patents)

11. Yong Li (6 out of 41 patents)

12. Mark Eason (6 out of 11 patents)

13. Xiaoyan Wang (5 out of 29 patents)

14. Clarita C Poon (4 out of 11 patents)

15. Jun Zheng (3 out of 7 patents)

Core Competencies:

LED Driver

Switching Power Converter

Adaptive Control

Light Load Efficiency

Dynamic Switching

Power Factor Correction

Digital Control

Current Shaping

Voltage Regulation

PWM Control

EMI Blocking

AC-DC Conversion

57 patents: Sort by Forward Citations

1. 8643303 - Adaptive dimmer detection and control for LED lamp (2014-02-04),

2. 8582329 - Adaptively controlled soft start-up scheme for switching power converters (2013-11-12),

3. 8581568 - Low power consumption start-up circuit with dynamic switching (2013-11-12),

4. 8576586 - Dynamic drive of switching transistor of switching power converter (2013-11-05),

5. 8564270 - On-time compensation for switching power converters (2013-10-22),

6. 8553431 - Switching power converter with load impedance detection (2013-10-08),

7. 8334662 - Adaptive switch mode LED driver (2012-12-18),

8. 8289732 - Controller for switching power converter driving BJT based on primary side adaptive digital control (2012-10-16),

9. 8259472 - Switching power converter having optimal dynamic load response with ultra-low no load power consumption (2012-09-04),

10. 8222832 - Adaptive dimmer detection and control for LED lamp (2012-07-17),

11. 8199539 - Adaptive control for transition between multiple modulation modes in a switching power converter (2012-06-12),

12. 8199537 - Detecting light load conditions and improving light load efficiency in a switching power converter (2012-06-12),

13. 8184762 - Digital phase lock loop with multi-phase master clock (2012-05-22),

14. 8049481 - Adaptive multi-mode digital control improving light-load efficiency in switching power converters (2011-11-01),

15. 8018743 - Adaptive control for transition between multiple modulation modes in a switching power converter (2011-09-13),

Iwatt Inc., based in Los Gatos, California, specializes in power conversion technology, focusing on innovative solutions for LED drivers and switching power converters. The company is dedicated to enhancing light load efficiency and dynamic switching capabilities, employing advanced techniques such as adaptive control and power factor correction. Iwatt's expertise in digital control and current shaping positions it as a key player in the development of energy-efficient power management solutions, catering to a variety of applications in the lighting industry.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

57 Patents

#7 in Los Gatos, CA

#1,463 in California

#6,238 in US

#12,542 in the World

Los Gatos, CA, United States of America

Iwatt Inc.

Forward Citations = 1,975

46 inventors:

Junjie Zheng (23 out of 53 patents)

John William Kesterson (19 out of 54 patents)

Mark D Telefus (19 out of 105 patents)

4. Dickson T Wong (10 out of 24 patents)

5. Arthur J Collmeyer (9 out of 12 patents)

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