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For the Inventor, By the Inventor

Seoul, South Korea

Hanwha Chemical Corporation


USPTO Granted Patents = 97



Trademarks = 1

Forward Citations = 194

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256 inventors (with patents filed for the assignee):

goldMedal Dong Ok Kim (14 out of 14 patents)

silverMedal Jin Seo Lee (13 out of 20 patents)

bronzeMedal Joo Hee Han (9 out of 13 patents)

4.  Wan Jae Myeong (8 out of 14 patents)

5.  Ui Gab Joung (8 out of 9 patents)

6.  Gui Ryong Ahn (8 out of 9 patents)

7.  Seung Hoe Do (8 out of 10 patents)

8.  Ju Young Park (8 out of 35 patents)

9.  Dong Wook Jeong (7 out of 7 patents)

10.  Eung Gyu Kim (7 out of 7 patents)

11.  Seong Cheol Hong (7 out of 7 patents)

12.  In Jun Lee (6 out of 6 patents)

13.  Eun Byul Kwon (6 out of 6 patents)

14.  Sang Hyun Cho (5 out of 10 patents)

15.  Seung-Hoe Do (5 out of 5 patents)


Core Competencies:
Hydrogenation Catalyst
Polyetherketoneketone
Polyamide Production
Metallocene Catalyst
Olefin Polymerization
Emulsion Particle
Polymer Nanoparticles
Graphene Preparation
High-Density Polymer
Silicon Manufacturing
Carbon Composite
EMI Shielding Resin

97 patents:

1. 11925920 - Catalyst for hydrogenation of aromatic compound and preparation method therefor (2024-03-12),
2. 11919999 - Method for preparing polyetherketoneketone and polyetherketoneketone prepared thereby (2024-03-05),
3. 11814480 - Method for producing polyamide with controlled activator addition, and polyamide produced thereby (2023-11-14),
4. 11718713 - Method for producing polyamide by coordinated anionic ring-opening polymerization, and polyamide produced thereby (2023-08-08),
5. 11608304 - Method for preparing cyclododecene and synthesis device therefor (2023-03-21),
6. 11433639 - Lightweight sandwich steel sheet using polyamide, and manufacturing method therefor (2022-09-06),
7. 11267917 - Hybrid catalyst composition, preparation method therefor, and polyolefin prepared using same (2022-03-08),
8. 11248067 - Hybrid supported metallocene catalyst, and polyolefin resin having excellent processability and using same (2022-02-15),
9. 11236186 - Transition metal compound for olefin polymerization catalyst, olefin polymerization catalyst comprising same, and polyolefin polymerized using same (2022-02-01),
10. 11046821 - Emulsion particle, emulsion comprising same, method for manufacturing emulsion (2021-06-29),
11. 11028046 - Toluene diisocyanate purification method (2021-06-08),
12. 10981081 - Distillation apparatus (2021-04-20),
13. 10975184 - High-density ethylene-based polymer using hybrid supported metallocene catalyst and pipe using same (2021-04-13),
14. 10975173 - High-processability high-density ethylene-based polymer using hybrid supported metallocene catalyst, and preparation method therefor (2021-04-13),
15. 10961337 - Method of preparing dicyclopentadiene-based resin and dicyclopentadiene-based resin (2021-03-30),
Hanwha Chemical Corporation is a subsidiary of Hanwha Group, a leading South Korean conglomerate. Established in 1965, Hanwha Chemical has grown into a global chemical company, specializing in various industries such as petrochemicals, plastics, and aerospace materials. With a strong focus on innovation and sustainability, the company strives to develop advanced products and technologies that meet the needs of its customers 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

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97 Patents

#63 in Seoul

#186 in South Korea

#7,771 in the World

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Seoul, South Korea

Hanwha Chemical Corporation

Forward Citations = 194

256 inventors:

goldMedal Dong Ok Kim (14 out of 14 patents)

silverMedal Jin Seo Lee (13 out of 20 patents)

bronzeMedal Joo Hee Han (9 out of 13 patents)

4.  Wan Jae Myeong (8 out of 14 patents)

5.  Ui Gab Joung (8 out of 9 patents)

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