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Tortola, Virgin Islands, British

Guardtime IP Holdings Limited

USPTO Granted Patents = 21

EPO Patents = 1

Trademarks = 5

Forward Citations = 116

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18 inventors (with patents filed for the assignee):

Ahto Buldas (12 out of 18 patents)

Jeffrey Pearce (10 out of 12 patents)

Andres Kroonmaa (5 out of 6 patents)

4. Ahto Truu (4 out of 9 patents)

5. Garrett Day (4 out of 5 patents)

6. Märt Saarepera (4 out of 4 patents)

7. David E Hamilton, Jr (3 out of 3 patents)

8. Kevin Zawicki (3 out of 3 patents)

9. Roger Guseman (3 out of 3 patents)

10. Michael Gault (3 out of 3 patents)

11. Risto Laanoja (2 out of 4 patents)

12. Hema Krishnamurthy (2 out of 12 patents)

13. Martin Ruubel (2 out of 2 patents)

14. Mart Saarepera (2 out of 7 patents)

15. Nicholas Child (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 10297094 - Challenge-response access control using context-based proof (2019-05-21),

2. 10284568 - System and method for secure transmission of streamed data frames (2019-05-07),

3. 10277608 - System and method for verification lineage tracking of data sets (2019-04-30),

4. 10249114 - System and method for access control using context-based proof (2019-04-02),

5. 10158492 - Blockchain-supported device location verification with digital signatures (2018-12-18),

6. 10103893 - Blockchain-supported, fail-safe synchronization in a data authentication infrastructure (2018-10-16),

7. 10068397 - System and method for access control using context-based proof (2018-09-04),

8. 9911007 - Redundant fail-safe synchronization in a data authentication infrastructure (2018-03-06),

9. 9876779 - Document verification with distributed calendar infrastructure (2018-01-23),

10. 9853819 - Blockchain-supported, node ID-augmented digital record signature method (2017-12-26),

11. 9697340 - System and methods with assured one-time, replay-resistant passwords (2017-07-04),

12. 9614682 - System and method for sequential data signatures (2017-04-04),

13. 9473510 - System and method for location verification (2016-10-18),

14. 9473306 - Document verification with ID augmentation (2016-10-18),

15. 9268969 - System and method for field-verifiable record authentication (2016-02-23),

Guardtime IP Holdings Limited is a global company specializing in cyber security and digital identity solutions. They offer a range of products and services that help organizations protect their critical data and ensure the integrity and authenticity of digital assets. With advanced technology and expertise in blockchain-based solutions, Guardtime provides secure and tamper-proof solutions for various industries, including defense, healthcare, finance, and government sectors.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

21 Patents

#24 in Tortola

#35 in Virgin Islands, British

#29,078 in the World

Tortola, Virgin Islands, British

Guardtime IP Holdings Limited

Forward Citations = 116

18 inventors:

Ahto Buldas (12 out of 18 patents)

Jeffrey Pearce (10 out of 12 patents)

Andres Kroonmaa (5 out of 6 patents)

4. Ahto Truu (4 out of 9 patents)

5. Garrett Day (4 out of 5 patents)

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