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For the Inventor, By the Inventor

Gyeonggi-do, South Korea

Heesung Catalysts Corporation


USPTO Granted Patents = 35


Forward Citations = 61

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67 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 34 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.  Sung Mu Choi (4 out of 15 patents)

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

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

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

15.  Michael Breen (3 out of 18 patents)


35 patents:

1. 12458958 - Composition for SCR catalysts (2025-11-04),
2. 12296326 - Catalyst for synthesis of hydrogen peroxide and recovery, and method of preparing same (2025-05-13),
3. 12280366 - Method for coating exhaust gas purification catalyst filter with fixed amount of catalyst slurry (2025-04-21),
4. 12145133 - Method for preparing dehydrogenation catalyst for linear chain light hydrocarbons with high regeneration efficiency (2024-11-19),
5. 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),
6. 11904299 - TWC system for fuel cut NOcontrol (2024-02-20),
7. 11826737 - High-performance zeolite for reducing nitrogen oxide emissions, method of preparing same and catalyst using same (2023-11-28),
8. 11813599 - Method for coating porous catalyst support and device therefor (2023-11-14),
9. 11679380 - Double-layer-structured catalyst for dehydrogenating light hydrocarbons (2023-06-20),
10. 11344875 - NOx-trapping catalyst having non-platinum-group-metal NOx-trapping layer (2022-05-31),
11. 11305266 - Catalyst and manufacturing method thereof (2022-04-19),
12. 11266979 - Method for preparing dehydrogenation catalyst for straight chain-type light hydrocarbon using stabilized active metal composite (2022-03-08),
13. 11135572 - Three-way catalyst comprising Pd—Rh alloy (2021-10-05),
14. 11040333 - Method for preparing dehydrogenation catalyst for straight chain-type light hydrocarbon using stabilized active material complex (2021-06-22),
15. 10889503 - Zeolite having specific ratio of divalent copper ions supported thereon, and preparation method therefor and catalyst composition comprising same (2021-01-12),
Heesung Catalysts Corporation is a global leader in the production and supply of catalysts for various industries. With over 50 years of experience, we specialize in providing innovative and efficient catalyst solutions that enhance the performance and sustainability of chemical processes. Our diverse range of catalyst products caters to the needs of the petrochemical, refining, environmental, and automotive sectors. We pride ourselves on delivering exceptional quality, reliability, and customer service to our clients worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

35 Patents

#33 in Gyeonggi-do

#399 in South Korea

#18,611 in the World

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Gyeonggi-do, South Korea

Heesung Catalysts Corporation

Forward Citations = 61

67 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)

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