San Jose, CA, United States of America

Quentin Liu

This inventor holds 16 USPTO granted patents and 1 published patent application, primarily in Digital Certificate Management. Top assignees: Symantec Corporation, Digicert, Inc.. Active years: 2013-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Quentin Liu. Retrieved from https://idiyas.com/inventor/quentin-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 = 16 

% Patents Active = 93.8

Average Co-Inventor Count = 2.8

ph-index = 5

Forward Citations = 76(Granted Patents)


Company Filing History:


Years Active: 2013-2024

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Areas of Expertise:
OCSP Responses
Digital Certificates
Two-Way Authentication
Content Delivery Networks
Data Protection
Latency Reduction
Enterprise Asset Discovery
PII Protection
Electronic Data Exchanges
Host Characteristics
Certificate Provisioning
Subject Alternative Name
16 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Quentin Liu in Digital Certificate Technology**

Introduction

Quentin Liu, a prolific inventor residing in San Jose, California, holds an impressive portfolio of 16 patents. His innovations primarily focus on enhancing the efficiency and security of digital certificate management. Through his work, Liu has significantly impacted the field of online security, particularly by streamlining processes related to the Online Certificate Status Protocol (OCSP).

Latest Patents

Quentin Liu's latest patents include groundbreaking techniques aimed at accelerating OCSP response distribution. One notable patent describes methods for utilizing content delivery networks (CDNs) to expedite the delivery of OCSP responses to relying parties. By enabling certificate authorities to generate updated responses and pre-generate cache keys, Liu's approach ensures that the OCSP responses are delivered promptly, thereby maintaining the integrity and security of digital communications.

Another recent patent focuses on the method of provisioning multiple digital certificates from an existing digital certificate. This technique involves extracting names and public keys from an existing certificate to create new digital certificates, facilitating a more efficient management process. These innovations showcase Liu's commitment to enhancing the reliability of digital certificates used across various online platforms.

Career Highlights

Quentin Liu has made significant contributions to the field of cybersecurity throughout his career. He has worked with prestigious organizations, including Symantec Corporation and DigiCert, Inc., where he honed his skills and developed the technologies that lead to his patented inventions. His career reflects a dedication to improving digital identity verification processes, showcasing a strong alignment with industry needs and advancements.

Collaborations

Throughout his career, Liu has collaborated with notable coworkers, including Richard F. Andrews and Marc Williams. These professional relationships have fostered an environment of innovation, allowing for the cross-pollination of ideas that have contributed to the advancement of digital certificate technologies.

Conclusion

Quentin Liu stands out as a leading figure in the domain of digital security, with a robust portfolio of patents that address critical issues in online certificate management. His work exemplifies the intersection of innovation and practicality, reflecting a deep understanding of the challenges faced in securing digital communications. Liu's contributions continue to shape the future of digital security, ensuring that the mechanisms behind online transactions remain secure and efficient.

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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