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For the Inventor, By the Inventor

Shandong, China

Wanhua Chemical Group Co., Ltd.


USPTO Granted Patents = 61


Trademarks = 25

Forward Citations = 12

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267 inventors (with patents filed for the assignee):

goldMedal Weiqi Hua (30 out of 36 patents)

silverMedal Yuan Li (26 out of 26 patents)

bronzeMedal Hongke Zhang (11 out of 14 patents)

4.  Yonghua Shang (9 out of 10 patents)

5.  Qingmei Jiang (6 out of 6 patents)

6.  Xueshun Ji (6 out of 6 patents)

7.  Hao Chen (6 out of 6 patents)

8.  Changsheng Chen (5 out of 5 patents)

9.  Naibo Chu (5 out of 5 patents)

10.  Congying Zhang (5 out of 5 patents)

11.  Jiakuan Sun (5 out of 5 patents)

12.  Jiansheng Ding (5 out of 11 patents)

13.  Bin Shi (4 out of 21 patents)

14.  Lei Wang (4 out of 8 patents)

15.  Fei Ye (4 out of 4 patents)


Core Competencies:
Polyurethane Dispersion
Epoxy Resin
Isocyanate Composition
Catalytic Oxidation
Thermoplastic Elastomer
Flame Retardant
Polyisocyanate
Aqueous Dispersion
Chemical Synthesis
Wastewater Treatment
Emulsifier Preparation
Propylene Epoxidation

61 patents:

1. 12383857 - Apparatus and method for rapid cooling of high temperature gas (2025-08-12),
2. 12378475 - Preparation method for emulsifier, emulsifier, aqueous epoxy resin dispersion and formulation method (2025-08-05),
3. 12304993 - Storage-stable polyisocyanate composition and preparation method (2025-05-20),
4. 12264121 - 1,3-bisisocyanatomethylcyclohexane composition and optical resin prepared therefrom (2025-04-01),
5. 12251463 - Composition containing water-soluble non-ionic polyurethane dispersion, and preparation method therefor (2025-03-18),
6. 12227610 - Aqueous dispersion comprising polyurethane or polyurethane-urea, preparation method therefor and use thereof (2025-02-18),
7. 12226761 - Catalyst for preparing phosgene and preparation method therefor, and method for preparation of phosgene and comprehensive utilization of energy thereof (2025-02-18),
8. 12202792 - Preparation method for optically active citronellal (2025-01-21),
9. 12122876 - Method for preparing reactive sealant resin (2024-10-22),
10. 12076702 - Device and method for oxidizing organic substance (2024-09-03),
11. 12024582 - Preparation method for polyurethane optical resin and applications thereof (2024-07-02),
12. 11964032 - Aqueous polyurethane functional mask substrate and application thereof (2024-04-23),
13. 11945775 - Stable dispersant and application thereof in preparing copolymer polyols (2024-04-02),
14. 11939280 - Method for preparing isophorone diisocyanate (2024-03-26),
15. 11918987 - Preparation method for propylene epoxidation catalyst and use thereof (2024-03-05),
Wanhua Chemical Group Co., Ltd. is a leading chemical company specializing in the production and distribution of polyurethanes and other chemical materials. With a commitment to sustainable development and technological innovation, Wanhua Chemical Group aims to provide high-quality products and solutions to customers worldwide. For more information about the company and its products, please visit their website.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

61 Patents

#10 in Shandong

#481 in China

#11,494 in the World

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Shandong, China

Wanhua Chemical Group Co., Ltd.

Forward Citations = 12

267 inventors:

goldMedal Weiqi Hua (30 out of 36 patents)

silverMedal Yuan Li (26 out of 26 patents)

bronzeMedal Hongke Zhang (11 out of 14 patents)

4.  Yonghua Shang (9 out of 10 patents)

5.  Qingmei Jiang (6 out of 6 patents)

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