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Sunnyvale, CA, United States of America

Supertex, Inc.

USPTO Granted Patents = 78

% Expired Patents = 17.9

Trademarks = 2

Forward Citations = 1,517

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42 inventors (with patents filed for the assignee):

Alexander Mednik (14 out of 33 patents)

Jimes Lei (12 out of 18 patents)

Rohit Tirumala (9 out of 16 patents)

4. James Terrell Walker (9 out of 25 patents)

5. Ching Chu (7 out of 11 patents)

6. Benedict C Choy (6 out of 6 patents)

7. Robert L Chao (6 out of 11 patents)

8. Scott Lynch (5 out of 11 patents)

9. Benedict C K Choy (5 out of 10 patents)

10. Richard A Blanchard (5 out of 46 patents)

11. James Nguyen (4 out of 35 patents)

12. Isaac Ko (4 out of 12 patents)

13. David Schie (4 out of 34 patents)

14. Lazar A Shifrin (4 out of 10 patents)

15. Wan Tim Chan (3 out of 9 patents)

Core Competencies:

LED Driver

Ultrasound Transmitter

High Voltage Circuit

Dimming Circuit

Analog-to-Digital Converter

Current Regulator

Power Converter

Transducer Excitation

Signal Level Shifter

Electroluminescent Lamp

Pulse Width Modulation

DC Power Converter

78 patents: Sort by Forward Citations

1. 8937565 - Impedance matched transmission circuit with analog-to-digital converter (2015-01-20),

2. 8907580 - Circuit and method for flicker suppression in light emitting diodes (LEDs) (2014-12-09),

3. 8896219 - Dimming circuit and method (2014-11-25),

4. 8749294 - Low pin count high voltage ultrasound transmitter and method therefor (2014-06-10),

5. 8686651 - Multiple stage sequential current regulator (2014-04-01),

6. 8648627 - Programmable ultrasound transmit beamformer integrated circuit and method (2014-02-11),

7. 8587278 - LED driver with low harmonic distortion of input AC current and methods of controlling the same (2013-11-19),

8. 8577021 - 5 ringer equivalent number (REN) ringer circuit using a high voltage level translator and a source follower buffer and method therefor (2013-11-05),

9. 8558598 - Phase shift generating circuit (2013-10-15),

10. 8542037 - Multi-level high voltage pulser integrated circuit using low voltage MOSFETs (2013-09-24),

11. 8536855 - Adjustable shunt regulator circuit without error amplifier (2013-09-17),

12. 8461777 - Protection from short cathode condition in LED driver and method therefor (2013-06-11),

13. 8456106 - LED driver with extended dimming range and method for achieving the same (2013-06-04),

14. 8400741 - Programmable echo signal switch with T/R switch for ultrasound beamforming integrated circuit and method (2013-03-19),

15. 8358090 - Dimmer circuit for transformer—isolated LED driver and method therefor (2013-01-22),

Company Overview

Supertex, Inc., based in Sunnyvale, California, specializes in advanced LED driver technology and high-performance analog and mixed-signal semiconductor solutions. The company focuses on developing innovative products such as LED drivers, ultrasound transmitters, and high voltage circuits, catering to a variety of applications in lighting and medical devices. Their expertise extends to dimming circuits, analog-to-digital converters, current regulators, power converters, and transducer excitation, positioning them as a key player in the semiconductor industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

78 Patents

#66 in Sunnyvale, CA

#1,098 in California

#4,742 in US

#9,681 in the World

Sunnyvale, CA, United States of America

Supertex, Inc.

Forward Citations = 1,517

42 inventors:

Alexander Mednik (14 out of 33 patents)

Jimes Lei (12 out of 18 patents)

Rohit Tirumala (9 out of 16 patents)

4. James Terrell Walker (9 out of 25 patents)

5. Ching Chu (7 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Supertex, Inc.. Retrieved from https://idiyas.com/company/supertex

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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