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For the Inventor, By the Inventor

Gyeonggi-do, South Korea

Heesung Catalysts Corporation


USPTO Granted Patents = 36

% Expired Patents = 11.1


Forward Citations = 64

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68 inventors (with patents filed for the assignee):

goldMedal Hyun-sik Han (12 out of 12 patents)

silverMedal Seung Chul Na (9 out of 9 patents)

bronzeMedal Eun-Seok Kim (7 out of 11 patents)

4.  Hyun Sik Han (7 out of 7 patents)

5.  Eunseok Kim (6 out of 7 patents)

6.  Young-san Yoo (5 out of 5 patents)

7.  Patrick L Burk (5 out of 35 patents)

8.  Jaya L Mohanan (4 out of 18 patents)

9.  Yasuyuki Banno (4 out of 9 patents)

10.  Jeong Bae Lee (4 out of 11 patents)

11.  Dong Kun Kang (4 out of 4 patents)

12.  Sung Mu Choi (4 out of 16 patents)

13.  Eun Seok Kim (4 out of 4 patents)

14.  Barbara K Slawski (3 out of 11 patents)

15.  Ho-Dong Kim (3 out of 32 patents)


Core Competencies:
Hydrogen Peroxide Synthesis
SCR Catalysts
Exhaust Gas Purification
Dehydrogenation Catalyst
Nitrogen Oxide Reduction
Zeolite Composition
Non-PGM Catalyst
Three-Way Catalyst
Oxidation Catalyst
Diesel Engine Emissions
Catalyst Coating
Molecular Sieve

36 patents:

1. 12714987 - Catalyst for hydrogen peroxide synthesis and regeneration (2026-08-25),
2. 12458958 - Composition for SCR catalysts (2025-11-04),
3. 12296326 - Catalyst for synthesis of hydrogen peroxide and recovery, and method of preparing same (2025-05-13),
4. 12280366 - Method for coating exhaust gas purification catalyst filter with fixed amount of catalyst slurry (2025-04-21),
5. 12145133 - Method for preparing dehydrogenation catalyst for linear chain light hydrocarbons with high regeneration efficiency (2024-11-19),
6. 12097483 - Exhaust gas-purification catalyst having multi-layer structure including precious metal thin layer as top layer, and method for producing same (2024-09-24),
7. 11904299 - TWC system for fuel cut NOcontrol (2024-02-20),
8. 11826737 - High-performance zeolite for reducing nitrogen oxide emissions, method of preparing same and catalyst using same (2023-11-28),
9. 11813599 - Method for coating porous catalyst support and device therefor (2023-11-14),
10. 11679380 - Double-layer-structured catalyst for dehydrogenating light hydrocarbons (2023-06-20),
11. 11344875 - NOx-trapping catalyst having non-platinum-group-metal NOx-trapping layer (2022-05-31),
12. 11305266 - Catalyst and manufacturing method thereof (2022-04-19),
13. 11266979 - Method for preparing dehydrogenation catalyst for straight chain-type light hydrocarbon using stabilized active metal composite (2022-03-08),
14. 11135572 - Three-way catalyst comprising Pd—Rh alloy (2021-10-05),
15. 11040333 - Method for preparing dehydrogenation catalyst for straight chain-type light hydrocarbon using stabilized active material complex (2021-06-22),
Heesung Catalysts Corporation, based in Gyeonggi-do, South Korea, specializes in the development and manufacturing of advanced catalyst materials. The company focuses on providing innovative solutions for various industrial applications, particularly in the fields of petrochemicals and environmental technologies. Heesung is dedicated to enhancing efficiency and sustainability through its cutting-edge research in catalyst technology, contributing to cleaner production processes and reduced environmental impact.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

36 Patents

#29 in Gyeonggi-do

#398 in South Korea

#18,716 in the World

Gyeonggi-do, KR
Gyeonggi-do, South Korea

Heesung Catalysts Corporation

Forward Citations = 64

68 inventors:

goldMedal Hyun-sik Han (12 out of 12 patents)

silverMedal Seung Chul Na (9 out of 9 patents)

bronzeMedal Eun-Seok Kim (7 out of 11 patents)

4.  Hyun Sik Han (7 out of 7 patents)

5.  Eunseok Kim (6 out of 7 patents)

Please report any incorrect information to [email protected]
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