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Grand Cayman, Cayman Islands

Concraft Holding Co., Ltd.

Calculating rank

USPTO Granted Patents = 41

% Expired Patents = 43.9

Trademarks = 1

Forward Citations = 78

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20 inventors (with patents filed for the assignee):

Kuo-Chi Lee (19 out of 25 patents)

Chin-Huang Lin (17 out of 20 patents)

Chin-Hsing Lee (11 out of 13 patents)

4. Shih-Chia Lai (7 out of 7 patents)

5. Jie-Ru Chen (6 out of 7 patents)

6. Chang-Hsien Tung (5 out of 17 patents)

7. Jin-Bo Peng (4 out of 4 patents)

8. Yong-Hong Jiang (4 out of 5 patents)

9. Feng-Cheng Chung (3 out of 3 patents)

10. Tong Su (3 out of 3 patents)

11. Jie Wu (3 out of 3 patents)

12. Tzu-Ching Tsai (3 out of 17 patents)

13. Zheng-Xiang Wang (2 out of 2 patents)

14. Yi-Hui Hsiao (2 out of 2 patents)

15. Lei Cheng (1 out of 3 patents)

Core Competencies:

Micro Speaker

Waterproof Effect

Diaphragm

Fresnel Lens

Fingerprint Recognition

Light Guide Mechanism

Electrical Connector

High Frequency Crosstalk

Manufacturing Method

Connector Assembly

Anti-Electromagnetic Interference

Touch Button

41 patents: Sort by Forward Citations

1. 11277693 - Micro speaker unit with a waterproof effect (2022-03-15),

2. 11197101 - Micro speaker capable of preventing voice coil rubbing (2021-12-07),

3. 11178766 - Inner module with a retainer (2021-11-16),

4. 11057708 - Diaphragm for a micro loudspeaker (2021-07-06),

5. 10999669 - Combinatorial inner module (2021-05-04),

6. 10945064 - Inner module used in a wireless earphone (2021-03-09),

7. 10841676 - Inner module assembly formed by a metal tape (2020-11-17),

8. 10840685 - Cable-holding device with sealing assembly (2020-11-17),

9. 10788607 - Fresnel lens with a light receiving effect (2020-09-29),

10. 10732406 - Lens structure formed by materials in different refractive indexes (2020-08-04),

11. 10725213 - Lens structure formed by materials in different refractive indexes (2020-07-28),

12. 10712477 - Lens structure formed by materials in different refractive indexes (2020-07-14),

13. 10705264 - Varifocal lens module (2020-07-07),

14. 10642440 - Touch button with better feel in pressing (2020-05-05),

15. 9919417 - Direction-adjustable jig (2018-03-20),

Company Overview

Concraft Holding Co., Ltd., based in Grand Cayman, specializes in advanced audio and electronic technologies. The company focuses on the development and manufacturing of micro speaker units, waterproof technology, and diaphragm designs, catering to the growing demand for high-quality audio solutions. Additionally, Concraft is involved in the innovation of wireless earphone modules, Fresnel lenses, and fingerprint recognition systems, alongside producing electrical connectors designed to minimize high-frequency crosstalk, enhancing device performance across various applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

41 Patents

#26 in Grand Cayman

#31 in Cayman Islands

#16,731 in the World

Grand Cayman, Cayman Islands

Concraft Holding Co., Ltd.

Forward Citations = 78

20 inventors:

Kuo-Chi Lee (19 out of 25 patents)

Chin-Huang Lin (17 out of 20 patents)

Chin-Hsing Lee (11 out of 13 patents)

4. Shih-Chia Lai (7 out of 7 patents)

5. Jie-Ru Chen (6 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Concraft Holding Co., Ltd.. Retrieved from https://idiyas.com/company/concraft-holding-company

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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