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For the Inventor, By the Inventor

Lausanne, Switzerland

Guardtime Sa

Calculating rank
USPTO Granted Patents = 16


Forward Citations = 35

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16 inventors (with patents filed for the assignee):

goldMedal Hema Krishnamurthy (9 out of 12 patents)

silverMedal Ahto Truu (4 out of 9 patents)

bronzeMedal Henri Lakk (4 out of 4 patents)

4.  Ahto Buldas (2 out of 18 patents)

5.  Risto Laanoja (2 out of 4 patents)

6.  Denis Firsov (2 out of 2 patents)

7.  Risto Alas (2 out of 2 patents)

8.  Jeffrey Pearce (2 out of 12 patents)

9.  Michael Shu Xie (2 out of 6 patents)

10.  Rando Mihkelsaar (1 out of 1 patent)

11.  Anthony Kenyon (1 out of 1 patent)

12.  Matthew Johnson (1 out of 1 patent)

13.  Garrett Day (1 out of 5 patents)

14.  Gregory Raymond (1 out of 1 patent)

15.  Mart Saarepera (1 out of 7 patents)


16 patents:

1. 12093952 - Verifiable transfer of data using sharded blockchain (2024-09-17),
2. 12041180 - Method and system for generating data signatures using an unbounded, stateless private key (2024-07-16),
3. 11963068 - System and method for verifiably proving proximity (2024-04-16),
4. 11477611 - System and method for verifiably proving proximity (2022-10-18),
5. 11329829 - Security for sequentially growing data structures (2022-05-10),
6. 11316698 - Delegated signatures for smart devices (2022-04-26),
7. 11184176 - System and method for generating data signatures over non-continuously bidirectional communication channels (2021-11-23),
8. 11061887 - Event verification receipt system and methods (2021-07-13),
9. 11057187 - Blockchain-assisted hash-based data signature system and method (2021-07-06),
10. 11018856 - Auditable system and methods for secret sharing (2021-05-25),
11. 10936732 - System and method for registering multi-party consent (2021-03-02),
12. 10637772 - Verification mechanism for network service chain paths (2020-04-28),
13. 10637669 - Data and data lineage control, tracking, and verification (2020-04-28),
14. 10511447 - System and method for generating one-time data signatures (2019-12-17),
15. 10447480 - Event verification receipt system and methods (2019-10-15),
Company Overview
Guardtime SA is a technology company based in Lausanne, Switzerland, specializing in blockchain and cybersecurity solutions. The organization focuses on developing innovative approaches to secure data integrity and enhance trust in digital transactions. With a strong emphasis on cryptographic techniques, Guardtime's technology is applicable across various sectors, including finance, healthcare, and supply chain management. The company aims to empower organizations to leverage secure and verifiable data in their operations, fostering transparency and accountability.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

16 Patents

#22 in Lausanne

#764 in Switzerland

#37,887 in the World

Lausanne, CH
Lausanne, Switzerland

Guardtime Sa

Forward Citations = 35

16 inventors:

goldMedal Hema Krishnamurthy (9 out of 12 patents)

silverMedal Ahto Truu (4 out of 9 patents)

bronzeMedal Henri Lakk (4 out of 4 patents)

4.  Ahto Buldas (2 out of 18 patents)

5.  Risto Laanoja (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Guardtime Sa. Retrieved from https://idiyas.com/company/guardtime-sa

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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