logo

For the Inventor, By the Inventor

Los Altos, CA, United States of America

Louis H Liang

This inventor holds 30 USPTO granted patents, primarily in Authentication Systems. Top assignees: Vlsi Technology, Inc., Angstrom Technologies, Inc., Other. Active years: 1992-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Louis H Liang. Retrieved from https://idiyas.com/inventor/louis-h-liang

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

USPTO Granted Patents = 30

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 22

Forward Citations = 1,746(Granted Patents)


Company Filing History:

goldMedal16 out of 1,083 
 
Vlsi Technology, Inc.
 patents
silverMedal13 out of 21 
 
Angstrom Technologies, Inc.
 patents
bronzeMedal2 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1992-2003

Loading Chart...
Areas of Expertise:
Authentication
Fluorescence Imaging
Optical Character Recognition
Integrated Circuit
Leadframe
Thermal Coupling
Document Security
Data Storage
Semiconductor Packaging
Tamper Resistance
Coaxial Optics
Multi-Layer PCB
30 patents (USPTO):Explore Patents
1. 6603871 - First-order authentication system (2003-08-05),
2. 6470093 - First-order authentication system (2002-10-22),
3. 6373965 - Apparatus and methods for authentication using partially fluorescent graphic images and OCR characters (2002-04-16),
4. D453175 - Money checker (2002-01-30),
5. 6057177 - Reinforced leadframe to substrate attachment (2000-05-02),
6. 5905300 - Reinforced leadframe to substrate attachment (1999-05-18),
7. 5867586 - Apparatus and methods for fluorescent imaging and optical character (1999-02-02),
8. 5719948 - Apparatus and methods for fluorescent imaging and optical character (1998-02-17),
9. 5714291 - System for authenticating printed or reproduced documents (1998-02-03),
10. 5666417 - Fluorescence authentication reader with coaxial optics (1997-09-09),
11. 5605738 - Tamper resistant system using ultraviolet fluorescent chemicals (1997-02-25),
12. 5574790 - Fluorescence authentication reader with coaxial optics (1996-11-12),
13. 5548106 - Methods and apparatus for authenticating data storage articles (1996-08-20),
14. 5532612 - Methods and apparatus for test and burn-in of integrated circuit devices (1996-07-02),
15. 5442234 - Apparatus for thermally coupling a heat sink to a leadframe (1995-08-15),

Title: Louis H Liang - Pioneering Inventor from Los Altos

Introduction: Louis H Liang is a distinguished inventor based in Los Altos, CA, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Louis H Liang holds several patents in the areas of technology, healthcare, and consumer electronics, showcasing his versatility and ingenuity in inventing novel solutions.

Career Highlights: With a career spanning over two decades, Louis H Liang has consistently pushed the boundaries of innovation, with his inventions revolutionizing industries and improving the lives of many.

Collaborations: Throughout his career, Louis H Liang has collaborated with leading companies, research institutions, and universities to bring his inventions to life, demonstrating his ability to work effectively in multidisciplinary teams.

Conclusion: Louis H Liang's passion for innovation and his relentless pursuit of excellence have established him as a prominent figure in the world of inventors, with his work leaving a lasting impact on society.

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]
Loading…