For the Inventor, By the Inventor

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Dallas, TX, United States of America

Zix Corporation

USPTO Granted Patents = 15

% Expired Patents = 13.3

CIPO Patents = 3

Trademarks = 4

Forward Citations = 1,617

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4 inventors (with patents filed for the assignee):

David Philip Cook (8 out of 32 patents)

Gary Gang Liu (6 out of 14 patents)

Peter Gallagher McNeil (4 out of 4 patents)

4. Daniel Nutkis (1 out of 3 patents)

5. John French Kalan (8 patents)

6. Gary G Liu (0 patent)

15 patents: Sort by Forward Citations

1. 12711424 - SYSTEMS AND METHODS FOR DETERMINATION, DESCRIPTION, AND USE OF FEATURE SETS FOR MACHINE LEARNING CLASSIFICATION SYSTEMS, INCLUDING ELECTRONIC MESSAGING SYSTEMS EMPLOYING MACHINE LEARNING CLASSIFICATION (2026-08-18),

2. 12694373 - Systems and methods for determination, description, and use of feature sets for machine learning classification systems, including electronic messaging systems employing machine learning classification (2026-07-28),

3. 12147948 - Systems and methods for determination, description, and use of feature sets for machine learning classification systems, including electronic messaging systems employing machine learning classification (2024-11-19),

4. 11887061 - Systems and methods for determination, description, and use of feature sets for machine learning classification systems, including electronic messaging systems employing machine learning classification (2024-01-30),

5. 9419950 - Secure message forwarding system detecting user's preferences including security preferences (2016-08-16),

6. 8027923 - Certified transmission system (2011-09-27),

7. 7574607 - Secure pipeline processing (2009-08-11),

8. 7539725 - Auditor system (2009-05-26),

9. 7493661 - Secure transmission system (2009-02-17),

10. 7475256 - Secure message forwarding system detecting user's preferences including security preferences (2009-01-06),

11. 7353204 - Certified transmission system (2008-04-01),

12. 7136841 - Centralized authorization and fraud-prevention system for network-based transactions (2006-11-14),

13. 6760752 - Secure transmission system (2004-07-06),

14. 6732101 - Secure message forwarding system detecting user's preferences including security preferences (2004-05-04),

15. 6675153 - Transaction authorization system (2004-01-06),

Company Overview

Zix Corporation, headquartered in Dallas, Texas, specializes in email security and data protection solutions. The company focuses on providing secure communication services, particularly for industries that require stringent compliance and confidentiality, such as healthcare and finance. Zix's offerings include advanced encryption technologies and secure email solutions, enabling organizations to safeguard sensitive information while ensuring seamless communication. Their commitment to security and compliance positions them as a trusted partner in the evolving landscape of digital communication.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

15 Patents

#138 in Dallas, TX

#1,296 in Texas

#21,034 in US

#39,881 in the World

Dallas, TX, United States of America

Zix Corporation

Forward Citations = 1,617

4 inventors:

David Philip Cook (8 out of 32 patents)

Gary Gang Liu (6 out of 14 patents)

Peter Gallagher McNeil (4 out of 4 patents)

4. Daniel Nutkis (1 out of 3 patents)

5. John French Kalan (8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Zix Corporation. Retrieved from https://idiyas.com/company/zix

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

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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