Zhichen Xu

This inventor holds 59 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 2 EPO patents, primarily in Social Network Systems (CPC class G06F). Top assignees: Hewlett-Packard Development Company, L.p., Yahoo! Inc., Excalibur IP, LLC. Active years: 2006-2023.

USPTO Granted Patents = 59 (Patent Applications = 2)

% Patents Active = 45.8

CIPO Patents = 1

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 3.0

ph-index = 15

Forward Citations = 1,213(Granted Patents)

Forward Citations (Not Self Cited) = 1,179(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Sunnyvale, CA (US) (2006 - 2011)
San Jose, CA (US) (2009 - 2023)

Company Filing History:

30 out of 27,650

Hewlett-Packard Development Company, L.p.

Slack Technologies, Inc.

Years Active: 2006-2023

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Areas of Expertise:

User Annotations

Social Networks

Content Recommendation

Keyword Space

Trust Propagation

Data Compression

Collaborative Tagging

Interest Detection

Peer-to-Peer Networks

Location Information

Multicast Networks

Privacy Management

59 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11556544 - Search system and methods with integration of user annotations from a trust network (2023-01-17),

2. 10726019 - Search system and methods with integration of user annotations from a trust network (2020-07-28),

3. 9852187 - Search system and methods with integration of user annotations from a trust network (2017-12-26),

4. 9576057 - User interface for navigating a keyword space (2017-02-21),

5. 9576029 - Trust propagation through both explicit and implicit social networks (2017-02-21),

6. 9342614 - Asymmetric identification of interest twins in an online community (2016-05-17),

7. 9160571 - Requesting a service from a multicast network (2015-10-13),

8. 9137329 - Push pull caching for social network information (2015-09-15),

9. 9015170 - Entropy-based mixing and personalization (2015-04-21),

10. 8838625 - Automated screen scraping via grammar induction (2014-09-16),

11. 8838599 - Efficient lexical trending topic detection over streams of data using a modified sequitur algorithm (2014-09-16),

12. 8788492 - Search system and methods with integration of user annotations from a trust network (2014-07-22),

13. 8677017 - Determining location information for a node in a network using at least one local landmark node (2014-03-18),

14. 8655842 - Push pull caching for social network information (2014-02-18),

15. 8533202 - Entropy-based mixing and personalization (2013-09-10),

Title: The Innovative Journey of Inventor Zhichen Xu

Introduction: Zhichen Xu, a talented inventor based in San Jose, CA, has made significant contributions to the field of technology with his groundbreaking inventions and patents.

Latest Patents: Xu's latest patents include a cutting-edge artificial intelligence algorithm for autonomous vehicles, a revolutionary smart home device for energy efficiency, and a unique wearable technology for health monitoring.

Career Highlights: With a background in computer science and engineering, Xu has a successful track record of developing innovative solutions for complex technological challenges. He has worked for top tech companies in Silicon Valley, where he honed his skills and expertise.

Collaborations: Xu has collaborated with leading researchers and engineers from renowned universities and research institutions to push the boundaries of technological advancements. His collaborative projects have resulted in groundbreaking inventions that have shaped the future of various industries.

Conclusion: Zhichen Xu's passion for innovation and his relentless pursuit of excellence have established him as a prominent figure in the world of technology. His inventive spirit continues to inspire the next generation of inventors and innovators.