San Jose, CA, United States of America

Walter Chang

This inventor holds 82 USPTO granted patents and 10 published patent applications, primarily in Natural Language Processing (CPC class G06F40-30). Top assignees: Adobe, Inc., International Business Machines Corporation, Oracle International Corporation. Active years: 1994-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Walter Chang. Retrieved from https://idiyas.com/inventor/walter-chang

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

USPTO Granted Patents = 82 

% Patents Active = 95.1

Average Co-Inventor Count = 2.8

ph-index = 19

Forward Citations = 1,189(Granted Patents)

Forward Citations (Not Self Cited) = 1,090(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:


Years Active: 1994-2026

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Areas of Expertise:
Natural Language Processing
Intent Detection
Dialog Systems
Semantic Analysis
Multimodal Selection
Color Prediction
Document Annotation
Abstractive Summarization
Interactive Tutorials
Text Segmentation
Conversational Query
Memory Networks
82 patents (USPTO):Explore Patents

Title: Top Inventor in San Jose

Introduction: Shan Liu is recognized as a leading inventor in San Jose, contributing significantly to various technological advancements.

Latest Patents: Shan Liu holds several recent patents that showcase innovative solutions in his field.

Career Highlights: Throughout his career, Liu has achieved numerous milestones that highlight his expertise and impact on technology.

Collaborations: He has collaborated with various organizations and professionals, enhancing the scope of his inventions.

Conclusion: Shan Liu's contributions continue to shape the landscape of innovation in San Jose and beyond.

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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