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For the Inventor, By the Inventor

Hsinchu, Taiwan

Wen-Huang Liu

This inventor holds 59 USPTO granted patents and 2 published patent applications, primarily in Light Emitting Diodes (CPC class H01L). Top assignees: Semileds Optoelectronics Co., Ltd., Epistar Corporation, Balay Biotechnology Corporation. Active years: 2005-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wen-Huang Liu. Retrieved from https://idiyas.com/inventor/wen-huang-liu

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

Calculating rank
USPTO Granted Patents = 59 

% Patents Active = 79.7

Average Co-Inventor Count = 2.9

ph-index = 16

Forward Citations = 622(Granted Patents)

Forward Citations (Not Self Cited) = 568(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Bei-Shan Village, TW (2009)
  • Chu-Nan, TW (2011)
  • Miao-Li County, TW (2010 - 2013)
  • Hsin-Chu, TW (2005 - 2014)
  • Guan-Xi, TW (2010 - 2014)
  • Hsincu County, TW (2014)
  • Hsinchu County, TW (2009 - 2015)
  • Guan-Xi Town, TW (2009 - 2020)

Company Filing History:

goldMedal39 out of 105 
 
Semileds Optoelectronics Co., Ltd.
 patents
silverMedal17 out of 1,234 
 
Epistar Corporation
 patents
bronzeMedal1 out of 1 
 
Balay Biotechnology Corporation
 patent
4. 1 out of 17 
 
Semileds Corporation
 patents
5. 1 out of 1 
 
Semileds Optoelectronics Co., Co., Ltd.
 patent

Years Active: 2005-2020

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Areas of Expertise:
Light Emitting Diodes
VLED Structures
Current Guiding
Light Extraction
Nitride Based LEDs
ASIC Integration
Phosphor Layers
Wafer-Type Devices
High Luminescence Efficiency
Conductive Substrates
59 patents (USPTO):Explore Patents
1. 10862013 - Light emitting diode device having electrode with low illumination side and high illumination side (2020-12-08),
2. 9130114 - Vertical light emitting diode (VLED) dice having confinement layers with roughened surfaces and methods of fabrication (2015-09-08),
3. 8933467 - Smart integrated semiconductor light emitting system including nitride based light emitting diodes (LED) and application specific integrated circuits (ASIC) (2015-01-13),
4. 8871547 - Method for fabricating vertical light emitting diode (VLED) structure using a laser pulse to remove a carrier substrate (2014-10-28),
5. 8871502 - Culture medium device (2014-10-28),
6. 8835953 - Lighting device comprising LEDs with phosphor layers (2014-09-16),
7. 8785958 - Light emitting element (2014-07-22),
8. 8716041 - Method for fabricating side by side light emitting diode (LED) having separate electrical and heat transfer paths (2014-05-06),
9. 8703515 - Method for guiding current in a light emitting diode (LED) device (2014-04-22),
10. 8685764 - Method to make low resistance contact (2014-04-01),
11. 8648370 - Wafer-type light emitting device having precisely coated wavelength-converting layer (2014-02-11),
12. 8614453 - Chip-type light emitting device having precisely coated wavelength-converting layer and packaged structure thereof (2013-12-24),
13. 8614449 - Protection for the epitaxial structure of metal devices (2013-12-24),
14. 8552458 - Side by side light emitting diode (LED) having separate electrical and heat transfer paths (2013-10-08),
15. 8546818 - Vertical LED with current-guiding structure (2013-10-01),

Title: The Innovative Journey of Wen-Huang Liu in Light Emitting Diode Technology

Introduction: Wen-Huang Liu is a notable inventor based in Hsinchu County, Taiwan, recognized for his impressive oeuvre of 59 patents. His innovations primarily focus on advancing the functionality and efficiency of light emitting diodes (LEDs), contributing significantly to the optoelectronics industry.

Latest Patents: Among his latest contributions is a groundbreaking patent for a light emitting diode device featuring an electrode with both low and high illumination sides. This innovative design enhances current spreading performance, reduces light absorption by the metal electrode, and ultimately increases the device's brightness and energy efficiency. Another significant patent involves vertical light emitting diode (VLED) dice that employ confinement layers with roughened surfaces to improve light emission. These VLEDs utilize a novel epitaxial structure that optimizes the interaction of emitted light and enhances overall device efficacy.

Career Highlights: Liu's career has involved pivotal roles in reputable companies, notably Semileds Optoelectronics Co., Ltd. and Epistar Corporation. His background in these leading firms underscores his expertise in the LED technology sector and his commitment to innovation.

Collaborations: Throughout his career, Liu has collaborated with esteemed colleagues such as Chen-Fu Chu and Feng-Hsu Fan. These partnerships have further enriched the innovative landscape of the optoelectronics field, showcasing the shared vision for advancing LED technologies.

Conclusion: Wen-Huang Liu's contributions to light emitting diode technology exemplify the transformative power of innovation in modern electronics. His extensive patent portfolio reflects a profound dedication to improving the efficiency and functionality of LED devices, solidifying his status as a leading inventor in the industry. As LED technology continues to evolve, Liu's work will undoubtedly influence future advancements and applications in this vital sector.

Profile summary based on public USPTO records.
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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