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Cheonan Si, South Korea

Rohm and Haas Electronic Materials Korea Ltd.

USPTO Granted Patents = 146

EPO Patents = 39

Forward Citations = 69

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237 inventors (with patents filed for the assignee):

Doo-Hyeon Moon (37 out of 42 patents)

Sang-Hee Cho (30 out of 38 patents)

Bitnari Kim (22 out of 23 patents)

4. Hee-Ryong Kang (19 out of 22 patents)

5. Su-Hyun Lee (17 out of 26 patents)

6. Jeong-Eun Yang (14 out of 16 patents)

7. Jin-Ri Hong (14 out of 20 patents)

8. Tae-Jin Lee (13 out of 100 patents)

9. Hong-Se Oh (13 out of 13 patents)

10. Chi-Sik Kim (13 out of 20 patents)

11. Young-Mook Lim (13 out of 14 patents)

12. Hee-Choon Ahn (13 out of 13 patents)

13. Hyun-Ju Kang (12 out of 12 patents)

14. Kyoung-Jin Park (11 out of 24 patents)

15. Jae Hwan Sim (11 out of 11 patents)

Core Competencies:

Polymeric Resin

Dielectric Applications

Organic Electroluminescent Compound

Electroluminescent Device

Coating Compositions

Photoresist

Luminescent Material

Host Materials

Electron Buffer Layer

UV Curable Silicone

Pattern Formation Methods

Delayed Fluorescence

146 patents: Sort by Forward Citations

1. 12479938 - Polymeric resin for dielectric applications (2025-11-25),

2. 12284910 - Organic electroluminescent compound and organic electroluminescent device comprising the same (2025-04-21),

3. 12256635 - Organic electroluminescent compound and organic electroluminescent device comprising the same (2025-03-18),

4. 12242193 - Coating compositions for use with an overcoated photoresist (2025-03-04),

5. 12234219 - Organic electroluminescent compound, a plurality of host materials, and organic electroluminescent device comprising the same (2025-02-25),

6. 12209093 - Organic electroluminescent compound and organic electroluminescent device comprising the same (2025-01-28),

7. 12207547 - Organic electroluminescent compound, organic electroluminescent material comprising the same, and organic electroluminescent device (2025-01-21),

8. 12114561 - Plurality of light-emitting materials and organic electroluminescent device comprising the same (2024-10-08),

9. 12102001 - Organic electroluminescent compound, organic electroluminescent material comprising the same, and organic electroluminescent device (2024-09-24),

10. 12096687 - Plurality of light-emitting materials, organic electroluminescent compound, and organic electroluminescent device comprising the same (2024-09-17),

11. 12084446 - Organic electroluminescent compound and organic electroluminescent device comprising the same (2024-09-10),

12. 12082496 - Composition material for organic electroluminescent device, plurality of host materials, and organic electroluminescent device comprising the same (2024-09-03),

13. 12055854 - Coating composition for photoresist underlayer (2024-08-06),

14. 12049468 - Plurality of host materials and organic electroluminescent device comprising the same (2024-07-30),

15. 12041845 - Organic electroluminescent compound and organic electroluminescent device comprising the same (2024-07-16),

Rohm and Haas Electronic Materials Korea Ltd. is a leading provider of electronic materials solutions for the semiconductor, flat panel display, and printed circuit board industries. With a strong commitment to innovation and customer satisfaction, the company offers a wide range of high-quality products and services, including photoresists, wet etchants, and electronic chemicals. With a global presence and a dedicated team of experts, Rohm and Haas Electronic Materials Korea Ltd. strives to meet the evolving needs of its customers and contribute to the advancement of the electronics industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

146 Patents

#4 in Cheonan Si

#148 in South Korea

#5,422 in the World

Cheonan Si, South Korea

Rohm and Haas Electronic Materials Korea Ltd.

Forward Citations = 69

237 inventors:

Doo-Hyeon Moon (37 out of 42 patents)

Sang-Hee Cho (30 out of 38 patents)

Bitnari Kim (22 out of 23 patents)

4. Hee-Ryong Kang (19 out of 22 patents)

5. Su-Hyun Lee (17 out of 26 patents)

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