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London, United Kingdom

National Nuclear Corporation Limited

Calculating rank

USPTO Granted Patents = 30

Forward Citations = 140

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31 inventors (with patents filed for the assignee):

Garth J Aspden (7 out of 7 patents)

Owen Hayden (4 out of 4 patents)

Graham Chesworth (3 out of 3 patents)

4. Norman Bradley (2 out of 2 patents)

5. Donald B Utton (2 out of 2 patents)

6. Eric Pendleton (2 out of 2 patents)

7. Karl A Roberts (2 out of 2 patents)

8. Alan Murray (2 out of 2 patents)

9. Donald Broadley (1 out of 1 patent)

10. Luther Welsh (1 out of 1 patent)

11. Gordon Kenworthy (1 out of 2 patents)

12. Samuel Untermyer, Ii (1 out of 2 patents)

13. Colin H Mitchell (1 out of 2 patents)

14. John E Hyde (1 out of 1 patent)

15. John M Yellowlees (1 out of 1 patent)

Core Competencies:

Reactivity Control

Radiation Measurement

Liquid Metal Cooling

Nuclear Fuel Storage

Heat Transfer Measurement

Failed Fuel Detection

Temperature Monitoring

Pressure Monitoring

Heat Exchangers

Nuclear Reactor Core

Fluid Flow Measurement

Scanning Devices

30 patents: Sort by Forward Citations

1. 4943409 - Reactivity control in nuclear reactors (1990-07-24),

2. 4931645 - Detector for measurement of radiation (1990-06-05),

3. 4879089 - Liquid metal cooled nuclear reactors (1989-11-07),

4. 4859400 - Nuclear reactor core restraint (1989-08-22),

5. 4849159 - Coolant-pumping system for a nuclear reactor (1989-07-18),

6. 4836274 - Liquid alkali metal-water, tube-in-shell steam generators (1989-06-06),

7. 4834937 - Fluid flow-restricting seals or baffles (1989-05-30),

8. 4794552 - Signal synthesizer (1988-12-27),

9. 4764023 - Heat transfer rate measurement using the optical properties of a (1988-08-16),

10. 4755347 - Dry storage of irradiated nuclear fuel (1988-07-05),

11. 4752435 - Scanning devices (1988-06-21),

12. 4712015 - Shields for nuclear reactors (1987-12-08),

13. 4698199 - Retractable duct connectors in a nuclear reactor (1987-10-06),

14. 4696787 - Monitoring pressure within a vessel (1987-09-29),

15. 4681729 - Monitoring temperature within a vessel (1987-07-21),

Company Overview

National Nuclear Corporation Limited is a prominent entity in the nuclear energy sector, specializing in the development and management of nuclear technologies and solutions. The company focuses on advancing nuclear power generation, waste management, and decommissioning processes, contributing to sustainable energy practices. Based in London, the corporation plays a vital role in the global nuclear landscape, engaging in research and innovation to enhance safety and efficiency in nuclear operations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

30 Patents

#129 in London

#595 in United Kingdom

#21,924 in the World

London, United Kingdom

National Nuclear Corporation Limited

Forward Citations = 140

31 inventors:

Garth J Aspden (7 out of 7 patents)

Owen Hayden (4 out of 4 patents)

Graham Chesworth (3 out of 3 patents)

4. Norman Bradley (2 out of 2 patents)

5. Donald B Utton (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: National Nuclear Corporation Limited. Retrieved from https://idiyas.com/company/national-nuclear

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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