For the Inventor, By the Inventor

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San Jose, CA, United States of America

Spyrus, Inc.

USPTO Granted Patents = 22

% Expired Patents = 27.3

Forward Citations = 1,610

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28 inventors (with patents filed for the assignee):

Burton George Tregub (5 out of 5 patents)

Mark James Sutherland (5 out of 32 patents)

Duane J Linsenbardt (5 out of 5 patents)

4. Russell D Housley (5 out of 6 patents)

5. William Reid Carlisle (4 out of 5 patents)

6. William P Bialick (4 out of 4 patents)

7. John N Young (3 out of 3 patents)

8. Robert R Jueneman (3 out of 3 patents)

9. Gregg Daniel Weissman (3 out of 7 patents)

10. Gregory W Dalcher (3 out of 3 patents)

11. Charles R J Moore (3 out of 3 patents)

12. Janet L Dolphin (3 out of 3 patents)

13. Paul Waihung Chau (3 out of 6 patents)

14. Kirk Skeba (2 out of 8 patents)

15. Thomas K Rowland (2 out of 9 patents)

22 patents: Sort by Forward Citations

1. 10673626 - Threshold secret share authentication proof and secure blockchain voting with hardware security modules (2020-06-02),

2. 10447486 - Remote attestation of a security module's assurance level (2019-10-15),

3. 9742561 - Secure remote authentication of local machine services using secret sharing (2017-08-22),

4. 9521123 - Method for file encryption (2016-12-13),

5. 9049010 - Portable data encryption device with configurable security functionality and method for file encryption (2015-06-02),

6. 8009829 - Method and system for deploying advanced cryptographic algorithms (2011-08-30),

7. 7757100 - Protected volume on a data storage device with dual operating systems and configurable access and encryption controls (2010-07-13),

8. 7380140 - Providing a protected volume on a data storage device (2008-05-27),

9. 7356692 - Method and system for enforcing access to a computing resource using a licensing attribute certificate (2008-04-08),

10. 6981149 - Secure, easy and/or irreversible customization of cryptographic device (2005-12-27),

11. 6904523 - Method and system for enforcing access to a computing resource using a licensing attribute certificate (2005-06-07),

12. 6816965 - Method and system for a policy enforcing module (2004-11-09),

13. 6737990 - Key input apparatus interface (2004-05-18),

14. 6295602 - Event-driven serialization of access to shared resources (2001-09-25),

15. 6292898 - Active erasure of electronically stored data upon tamper detection (2001-09-18),

Spyrus, Inc. is a technology company based in San Jose, California, specializing in secure data storage and cryptographic solutions. The organization develops advanced hardware and software products that focus on data protection, identity management, and secure communications. With a strong emphasis on security protocols, Spyrus serves various sectors, including government, finance, and healthcare, providing innovative solutions that address the growing need for robust cybersecurity measures in an increasingly digital world.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

22 Patents

#327 in San Jose, CA

#3,582 in California

#15,012 in US

#28,724 in the World

San Jose, CA, United States of America

Spyrus, Inc.

Forward Citations = 1,610

28 inventors:

Burton George Tregub (5 out of 5 patents)

Mark James Sutherland (5 out of 32 patents)

Duane J Linsenbardt (5 out of 5 patents)

4. Russell D Housley (5 out of 6 patents)

5. William Reid Carlisle (4 out of 5 patents)

Please report any incorrect information to [email protected]

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