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For the Inventor, By the Inventor

Seorin-dong, Jongro-gu, Seoul, South Korea

Sk Corporation


USPTO Granted Patents = 63



Trademarks = 135

Forward Citations = 599

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175 inventors (with patents filed for the assignee):

goldMedal Sun Woong Choi (8 out of 32 patents)

silverMedal Yong Moon Choi (6 out of 18 patents)

bronzeMedal Byong-Sung Kwak (4 out of 6 patents)

4.  Jun-Seong Ahn (4 out of 4 patents)

5.  Sang-Ho Lee (4 out of 7 patents)

6.  Cheol Woo Kim (3 out of 27 patents)

7.  Jin Kyung Jo (3 out of 9 patents)

8.  Young Bom Kim (3 out of 9 patents)

9.  Jong Hyung Lee (3 out of 7 patents)

10.  Jong-Ho Lim (3 out of 4 patents)

11.  Wha-Sik Min (3 out of 4 patents)

12.  Kyoung Hak Sung (3 out of 3 patents)

13.  Sam-Ryong Park (3 out of 3 patents)

14.  Yong-Moon Choi (3 out of 3 patents)

15.  Seung-Hoon Oh (3 out of 3 patents)


Core Competencies:
Organic Electroluminescent Device
Semiconductor Etching Composition
Arylphenoxy Catalyst System
Hydrocarbon Production Process
Transnasal Anticonvulsive Compositions
Selective Catalytic Reduction
Hydrogen Purification Module
Microporous High Density Polyethylene Film
Optically Pure Compounds
Chemical Cleaning Process
Air Permeable Film
Cleaner Fuels Manufacturing

63 patents:

1. 12415949 - Compound, organic electroluminescent device, and display device (2025-09-16),
2. 12146092 - Etching composition, method for etching insulating film of semiconductor devices using the same and method for preparing semiconductor devices (2024-11-19),
3. 12116520 - Composition for etching, method for etching insulator and method for manufacturing semiconductor device, and novel compounds (2024-10-15),
4. 11365350 - Silane compound (2022-06-21),
5. 7974776 - System and method for providing origin and destination guide information (2011-07-05),
6. 7860645 - System and method for providing telematics service (2010-12-28),
7. 7589042 - Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and α-olefins (2009-09-15),
8. 7405070 - Method for preparing (s)-indoline-2-carboxylic acid and (s)-indoline-2-carboxylic acid methyl ester using hydrolytic enzyme (2008-07-29),
9. 7361328 - Method of preparing ZSM-5 using variable temperature without organic template (2008-04-22),
10. 7332531 - Microporous high density polyethylene film (2008-02-19),
11. 7304195 - Process for increasing production of benzene from hydrocarbon mixture (2007-12-04),
12. 7301063 - Process for increasing production of light olefin hydrocarbon from hydrocarbon feedstock (2007-11-27),
13. 7297831 - Process of preparing aromatic hydrocarbons and liquefied petroleum gas from hydrocarbon mixture (2007-11-20),
14. 7214793 - Method of preparing 10H-dibenzo[b,f][11,4]thiazepin-11-one (2007-05-08),
15. 7189289 - Cleaning agent and method for cleaning heater tubes (2007-03-13),
SK Corporation is a multinational conglomerate company based in South Korea. With a diverse portfolio of businesses including energy, chemicals, telecommunications, and semiconductors, SK Corporation is a leading force in the global market. Their commitment to innovation and sustainable growth has made them a trusted name in industries worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 13 2026

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63 Patents

#1 in Seorin-dong, Jongro-gu, Seoul

#261 in South Korea

#11,346 in the World

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Seorin-dong, Jongro-gu, Seoul, South Korea

Sk Corporation

Forward Citations = 599

175 inventors:

goldMedal Sun Woong Choi (8 out of 32 patents)

silverMedal Yong Moon Choi (6 out of 18 patents)

bronzeMedal Byong-Sung Kwak (4 out of 6 patents)

4.  Jun-Seong Ahn (4 out of 4 patents)

5.  Sang-Ho Lee (4 out of 7 patents)

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