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For the Inventor, By the Inventor

London, United Kingdom

R3 Ltd.


USPTO Granted Patents = 25


Trademarks = 5

Forward Citations = 68

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13 inventors (with patents filed for the assignee):

goldMedal Michael Christopher Hearn (14 out of 21 patents)

silverMedal Qurratul Ain Shams Asari (9 out of 9 patents)

bronzeMedal Konstantinos Chalkias (5 out of 5 patents)

4.  Richard Gendal Brown (5 out of 10 patents)

5.  David Hudson (3 out of 3 patents)

6.  James William George Carlyle (3 out of 5 patents)

7.  Andrius Dagys (2 out of 2 patents)

8.  Richard John Parker (2 out of 2 patents)

9.  Roy Hopkins (2 out of 2 patents)

10.  Matthew Nesbit (1 out of 1 patent)

11.  Denis Zhereschin (1 out of 1 patent)

12.  Marco Bonifazi (1 out of 1 patent)

13.  Michael Christopher Hearn (1 out of 1 patent)

14.  Christopher Michael Hearn (0 patent)


Core Competencies:
Blockchain
Secure Enclave
Transaction Protocols
Post-Quantum Signatures
Distributed Ledger
Digital Documents
Netting Transactions
Fraud Prevention
Authorization Policies
Persistent File System
Hash Subtrees
Dynamic Management

25 patents:

1. 12361394 - Protocol flow for notarizing a transaction (2025-07-15),
2. 12333496 - Settling obligations via netting transactions (2025-06-17),
3. 12212683 - Persistent file system in a secure enclave (2025-01-28),
4. 12120242 - Hash subtrees for grouping components by component type (2024-10-15),
5. 12003617 - Sealed distributed ledger system (2024-06-04),
6. 11978024 - Protocol flow for notarizing a transaction (2024-05-07),
7. 11750400 - Blockchain post-quantum signature scheme (2023-09-05),
8. 11645385 - Counteracting fraudulent clock readings and side-channel attacks (2023-05-09),
9. 11625696 - System and method for managing transactions in dynamic digital documents (2023-04-11),
10. 11625695 - Protocol framework for supporting protocol flows (2023-04-11),
11. 11625680 - Settling obligations via netting transactions (2023-04-11),
12. 11568372 - Deterministic java virtual machine (2023-01-31),
13. 11544679 - Protocol flow for proposing a transaction (2023-01-03),
14. 11544678 - Protocol flow for notarizing a transaction (2023-01-03),
15. 11449959 - System and method for managing transactions in dynamic digital documents (2022-09-20),
Company Overview
R3 Ltd. is a London-based technology company specializing in blockchain and distributed ledger technology. The organization focuses on developing innovative solutions that enhance transparency, security, and efficiency across various industries, including finance, supply chain, and healthcare. R3's flagship product, Corda, is designed to facilitate secure and private transactions between businesses, enabling them to streamline operations and reduce costs. The company collaborates with a diverse range of partners to advance the adoption of blockchain technology globally.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

R3 Ltd. USPTO Patent Assignee Logo
25 Patents

#148 in London

#701 in United Kingdom

#25,681 in the World

London, GB
London, United Kingdom

R3 Ltd.

Forward Citations = 68

13 inventors:

goldMedal Michael Christopher Hearn (14 out of 21 patents)

silverMedal Qurratul Ain Shams Asari (9 out of 9 patents)

bronzeMedal Konstantinos Chalkias (5 out of 5 patents)

4.  Richard Gendal Brown (5 out of 10 patents)

5.  David Hudson (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: R3 Ltd.. Retrieved from https://idiyas.com/company/r3

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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