For the Inventor, By the Inventor

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Taichung, Taiwan

General Plastic Industrial Co., Ltd.

USPTO Granted Patents = 74

EPO Patents = 1

Trademarks = 3

Forward Citations = 426

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50 inventors (with patents filed for the assignee):

Kuan-Tung Li (20 out of 25 patents)

Ya-Li Huang (14 out of 19 patents)

Shih-Chieh Huang (12 out of 15 patents)

4. Jui-Chi Wang (11 out of 22 patents)

5. Robin Hsu (11 out of 20 patents)

6. Chin-His Chuang (9 out of 9 patents)

7. Yi-Chia Wu (9 out of 9 patents)

8. Ren-Hao Liu (7 out of 9 patents)

9. Ching-Ho Huang (5 out of 5 patents)

10. Shih-Hsiung Huang (5 out of 5 patents)

11. Yueh-Chun Lee (5 out of 6 patents)

12. Chi-Chin Huang (3 out of 3 patents)

13. Chun-Tien Liu (3 out of 3 patents)

14. Xiao Hui Wang (3 out of 5 patents)

15. Kuan Tung Li (3 out of 6 patents)

Core Competencies:

Toner Cartridge

Photosensitive Drum

Toner Detection Device

Transmission Device

Waste Toner Detection

Chip Module

Leak-Prohibiting Device

Driving Unit

Developer Supply Container

Connecting Member

Error Proof Device

Toner Supply Container

74 patents: Sort by Forward Citations

1. 12353147 - Chip module of toner cartridge (2025-07-08),

2. 11947281 - Method for filling toner into toner cartridge (2024-04-02),

3. 11385568 - Linking mechanism for toner cartridge (2022-07-12),

4. 11137700 - Toner cartridge (2021-10-05),

5. 11048190 - Leak-prohibiting device of toner cartridge (2021-06-29),

6. 10983474 - Waste toner detection device (2021-04-20),

7. 10921738 - Error proof device for toner cartridge and toner cartridge using the same (2021-02-16),

8. 10890875 - Connecting member (2021-01-12),

9. 10642215 - Toner detection device of waste toner container (2020-05-05),

10. 10606207 - Connecting member and transmission unit of electronic image-forming apparatus having the same (2020-03-31),

11. 10547132 - Chip module for toner cartridge (2020-01-28),

12. 10534308 - Transmission device for a photosensitive drum (2020-01-14),

13. 10386776 - Connecting member and roller unit of electronic image-forming apparatus having the same (2019-08-20),

14. 10379491 - Lateral cap of process cartridge (2019-08-13),

15. 10281842 - Toner cartridge (2019-05-07),

GENERAL PLASTIC INDUSTRIAL CO., LTD. is a leading manufacturer and supplier of high-quality plastic products. With over 50 years of experience, our company specializes in providing innovative plastic solutions for various industries such as automotive, electronics, healthcare, and consumer goods. We offer a wide range of products including plastic sheets, rods, tubes, films, and custom-made plastic parts. Our commitment to quality, customer satisfaction, and continuous improvement has made us a trusted partner for many global companies. Visit our website to learn more about our products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

74 Patents

#25 in Taichung

#289 in Taiwan

#9,715 in the World

Taichung, Taiwan

General Plastic Industrial Co., Ltd.

Forward Citations = 426

50 inventors:

Kuan-Tung Li (20 out of 25 patents)

Ya-Li Huang (14 out of 19 patents)

Shih-Chieh Huang (12 out of 15 patents)

4. Jui-Chi Wang (11 out of 22 patents)

5. Robin Hsu (11 out of 20 patents)

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