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For the Inventor, By the Inventor

KR

Sk Chemicals


USPTO Granted Patents = 12



Forward Citations = 6

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53 inventors (with patents filed for the assignee):

goldMedal Yoo Jin Lee (3 out of 27 patents)

silverMedal Ji-Hun Kim (3 out of 8 patents)

bronzeMedal Kwang-Woo Park (3 out of 7 patents)

4.  Joong Ki Lee (3 out of 6 patents)

5.  Ki-Seung Choi (2 out of 7 patents)

6.  Jin-Man Kim (2 out of 9 patents)

7.  Soon-Jong Hahn (2 out of 10 patents)

8.  Jae-Min Ha (2 out of 2 patents)

9.  Seung-Hwan Kim (2 out of 6 patents)

10.  Da-Young Hwang (2 out of 12 patents)

11.  Yuntae Jin (2 out of 3 patents)

12.  Seong-Ki Lee (2 out of 3 patents)

13.  Soon-Ki Kim (1 out of 5 patents)

14.  Hyung-Gon Kim (1 out of 4 patents)

15.  Dae Hee Han (1 out of 5 patents)


12 patents:

1. 12753276 - Polyester copolymer having excellent strength, and product comprising the same (2026-10-06),
2. 12692344 - Copolymer polyester resin and adhesive composition comprising same (2026-07-28),
3. 12674037 - Method for manufacturing a recycled material composition (2026-07-07),
4. 12668564 - Method for preparing bis(glycol)terephthalate and polyester resin using same (2026-06-30),
5. 12662585 - Method for producing polyester resin by using regenerated bis(2-hydroxyethyl) terephthalate aqueous solution (2026-06-23),
6. 12624188 - Method for producing bis-2-hydroxyethyl terephthalate through continuous depolymerization (2026-05-12),
7. 12617925 - Method for producing bis(2-hydroxyethyl)terephthalate by using recycled ethylene glycol (2026-05-05),
8. 12606668 - Polyester resin blend (2026-04-21),
9. 12594279 - Composition for preventing or treating TNF-α-related disease, comprising hydroflumethiazide as active ingredient (2026-04-07),
10. 6534076 - Stabilized isothiazolone compositions and methods of stabilization of isothiazolone (2003-03-18),
11. 6399827 - Quaternary ammonium phosphate compound and method of preparing same (2002-06-04),
12. 6383379 - Method of preparing a microbial culture for wastewater treatment (2002-05-07),
Company Overview
SK Chemicals is a prominent South Korean company engaged in the development and manufacturing of advanced materials and chemicals. The organization specializes in eco-friendly products, focusing on sustainable solutions in various sectors, including pharmaceuticals, biotechnology, and specialty chemicals. With a commitment to innovation, SK Chemicals invests in research and technology to enhance its product offerings and address global environmental challenges, positioning itself as a leader in the green chemistry movement.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

12 Patents

#26 in

#936 in South Korea

#48,163 in the World

KR
KR

Sk Chemicals

Forward Citations = 6

53 inventors:

goldMedal Yoo Jin Lee (3 out of 27 patents)

silverMedal Ji-Hun Kim (3 out of 8 patents)

bronzeMedal Kwang-Woo Park (3 out of 7 patents)

4.  Joong Ki Lee (3 out of 6 patents)

5.  Ki-Seung Choi (2 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sk Chemicals. Retrieved from https://idiyas.com/company/sk-chemicals

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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