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Sang Hyouk Choi

Poquoson, VA, United States of America

Sang Hyouk Choi

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This inventor holds 61 USPTO granted patents and 5 published patent applications, primarily in Nuclear Propulsion Technology (CPC class H01L). Top assignees: United States of America as Represented by the Administrator of NASA, National Institute of Aerospace Associates, Gachon University of Medicine & Science Industry-Academic Cooperation Foundation. Active years: 2008-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sang Hyouk Choi. Retrieved from https://idiyas.com/inventor/sang-hyouk-choi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 61 

% Patents Active = 62.3

Average Co-Inventor Count = 3.0

ph-index = 9

Forward Citations = 219(Granted Patents)

Forward Citations (Not Self Cited) = 121(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Yorktown, VA (US) (2014)
  • Poquson, VA (US) (2020)
  • Poquoson, VA (US) (2008 - 2024)

Company Filing History:

goldMedal56 out of 2,490 
 
United States of America as Represented by the Administrator of NASA
 patents
silverMedal4 out of 15 
 
National Institute of Aerospace Associates
 patents
bronzeMedal3 out of 10 
 
Gachon University of Medicine & Science Industry-Academic Cooperation Foundation
 patents
4. 1 out of 2,546 
 
The United States of America as Represented by the Administrator of the
 patents
5. 1 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 2008-2025

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Areas of Expertise:
Nuclear Electric Propulsion
Thermoelectric Generator
CMOS Processing
Electron Beam Irradiation
Photoelectron Avalanche
Thermionic Power Cell
High Performance Generators
Single Crystal Epitaxy
Rhombohedral Structures
Integrated Light Emitting Device
Nanoparticle Fabrication
Deep Brain Stimulation
61 patents (USPTO):Explore Patents
1. 12252780 - Growth method of highly twinned SiGe alloy on the basal plane of trigonal substrate under electron beam irradiation (2025-03-18),
2. 12122539 - NTAC augmented nuclear electric propulsion and/or nuclear thermal propulsion (2024-10-22),
3. 11980100 - Metallic junction thermoelectric generator (2024-05-07),
4. 11979100 - High performance electric generators boosted by nuclear electron avalanche (NEA) (2024-05-07),
5. 11885040 - Single crystal epitaxial layer having a rhombohedral lattice (2024-01-30),
6. 11721451 - Thermionic power cell (2023-08-08),
7. 11670432 - Multi-layered radio-isotope for enhanced photoelectron avalanche process (2023-06-06),
8. 11646679 - High performance electric generators boosted by nuclear electron avalanche (NEA) (2023-05-09),
9. 11581468 - Selective and direct deposition technique for streamlined CMOS processing (2023-02-14),
10. 11581104 - Multi-layer structure of nuclear thermionic avalanche cells (2023-02-14),
11. 11299820 - Electron beam heating and atomic surface restructuring of sapphire surface (2022-04-12),
12. 11257604 - Multi-layered radio-isotope for enhanced photoelectron avalanche process (2022-02-22),
13. 11094425 - Thermionic power cell (2021-08-17),
14. 11063198 - Metallic junction thermoelectric generator (2021-07-13),
15. 11037687 - Co-60 breeding reactor tandem with thermionic avalanche cell (2021-06-15),

Of course! Here is the article:

Title: Innovator Spotlight: Sang Hyouk Choi - Pioneering Patents and Technologies

Introduction:

Sang Hyouk Choi, a prolific inventor based in Poquoson, VA (US), has made significant contributions to the field of technology with his inventive spirit and dedication to innovation. With an impressive portfolio of 56 patents, Choi continues to push the boundaries of what is possible in the realm of scientific advancements.

Latest Patents:

Among Choi's latest patents is the groundbreaking "Single crystal epitaxial layer having a rhombohedral lattice." This patent introduces methods for forming an epitaxial layer with unique properties, including growing a single epitaxial layer on a substrate with a rhombohedral lattice structure. Additionally, Choi's "Thermionic power cell" patent showcases his expertise in energy generation technologies, utilizing heat sources such as radioactive materials to induce an electric current flow.

Career Highlights:

Throughout his career, Choi has worked with prestigious organizations such as the National Aeronautics and Space Administration (NASA). His involvement with NASA has allowed him to contribute towards cutting-edge research and development projects that have the potential to reshape the future of space exploration and technology.

Collaborations:

Choi has collaborated closely with talented individuals in his field, including notable coworkers Yeonjoon Park and Glen C. King. Together, they have combined their expertise to drive forward innovative projects and create groundbreaking solutions to complex technological challenges.

Conclusion:

In conclusion, Sang Hyouk Choi stands as a shining example of an inventor whose dedication to innovation has led to the creation of impactful technologies. His patents reflect his pioneering spirit and his commitment to pushing the boundaries of what is possible. Choi's contributions to the field of technology continue to inspire and pave the way for the next generation of inventors and innovators.

Profile summary based on public USPTO records.
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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