For the Inventor, By the Inventor

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San Jose, CA, United States of America

Ledengin, Inc.

USPTO Granted Patents = 55

% Expired Patents = 3.6

EPO Patents = 6

Trademarks = 1

Forward Citations = 453

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17 inventors (with patents filed for the assignee):

Xiantao Yan (40 out of 43 patents)

Zequn Mei (16 out of 21 patents)

Wu Jiang (15 out of 19 patents)

4. Kachun Lee (13 out of 13 patents)

5. Debo A Adebiyi (5 out of 5 patents)

6. Justin Ware (4 out of 4 patents)

7. David Tahmassebi (3 out of 3 patents)

8. Shifan Cheng (2 out of 2 patents)

9. Yi Dong (2 out of 33 patents)

10. Kevin Schneider (1 out of 1 patent)

11. Julio Cesar Alvarado (1 out of 1 patent)

12. Truc Phoung Thi Vu (1 out of 1 patent)

13. Danny Gonzales (1 out of 1 patent)

14. William E Armstrong (1 out of 1 patent)

15. Truc Phuong Thi Vu (1 out of 1 patent)

Core Competencies:

Tunable LED

Multi-Emitter

Optical System

Ceramic Package

Phosphor Cap

High Color Consistency

Total Internal Reflection

Brightness Control

Warm Dimming

LED Streetlight

Heat Dissipation

LED Packaging

55 patents: Sort by Forward Citations

1. 11032884 - Method for making tunable multi-led emitter module (2021-06-08),

2. 10837619 - Optical system for multi-emitter LED-based lighting devices (2020-11-17),

3. 10575374 - Package for flip-chip LEDs with close spacing of LED chips (2020-02-25),

4. 10429030 - Hybrid lens system incorporating total internal reflection lens and diffuser (2019-10-01),

5. 10219345 - Tunable LED emitter with continuous spectrum (2019-02-26),

6. 10172206 - Compact emitter for warm dimming and color tunable lamp (2019-01-01),

7. 10149363 - Method for making tunable multi-LED emitter module (2018-12-04),

8. 9929326 - LED package having mushroom-shaped lens with volume diffuser (2018-03-27),

9. 9897284 - LED-based MR16 replacement lamp (2018-02-20),

10. 9842973 - Method of manufacturing ceramic LED packages with higher heat dissipation (2017-12-12),

11. 9816691 - Method and system for forming LED light emitters (2017-11-14),

12. 9794999 - Color tunable light source module with brightness and dimming control (2017-10-17),

13. 9653663 - Ceramic LED package (2017-05-16),

14. 9642206 - Compact emitter for warm dimming and color tunable lamp (2017-05-02),

15. 9634214 - Graphite-containing substrates for LED packages (2017-04-25),

Ledengin, Inc. is a leading innovator in LED lighting technology, headquartered in San Jose, California. The company specializes in developing advanced lighting solutions that incorporate tunable LED systems and multi-emitter designs. Their expertise extends to optical systems and ceramic packaging, ensuring high color consistency and effective brightness control. Ledengin's commitment to enhancing lighting performance is evident in their use of phosphor caps and total internal reflection techniques, positioning them at the forefront of the LED industry.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

55 Patents

#177 in San Jose, CA

#1,514 in California

#6,448 in US

#12,903 in the World

San Jose, CA, United States of America

Ledengin, Inc.

Forward Citations = 453

17 inventors:

Xiantao Yan (40 out of 43 patents)

Zequn Mei (16 out of 21 patents)

Wu Jiang (15 out of 19 patents)

4. Kachun Lee (13 out of 13 patents)

5. Debo A Adebiyi (5 out of 5 patents)

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