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For the Inventor, By the Inventor

Taichung, Taiwan

Lea Way Hand Tool Corporation

Calculating rank
USPTO Granted Patents = 27

% Expired Patents = 14.8

Forward Citations = 321

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8 inventors (with patents filed for the assignee):

goldMedal Tom Tuanmu (10 out of 10 patents)

silverMedal Yu-Cheng Lin (7 out of 11 patents)

bronzeMedal Hsien Chung Tuan Mu (4 out of 4 patents)

4.  Hsien-Chung TuanMu (3 out of 3 patents)

5.  Sammy Tsai (2 out of 2 patents)

6.  Hsien-Chung Tuan Mu (2 out of 3 patents)

7.  Hsien-Chung Tuan-Mu (1 out of 17 patents)

8.  Hui-Chen Chang (1 out of 1 patent)


Core Competencies:
Reversible Ratcheting Wrench
Gear Wrench
Joint Wrench
Two-Way Wrench
Ratchet Mechanism
Adjustable Head
Joint Lock Mechanism
Tool Assembly
Socket Connecting Structure
Articulated Wrench
Force Application
Driving Member

27 patents:

1. D559054 - Reversible ratcheting wrench (2008-01-08),
2. D558006 - Gear of a wrench (2007-12-25),
3. D555995 - Joint wrench (2007-11-27),
4. D551924 - Gear of a wrench (2007-10-02),
5. D551042 - Two-way wrench (2007-09-18),
6. D550527 - Ratchet wrench (2007-09-11),
7. D547150 - Ratchet wrench (2007-07-24),
8. D545651 - Rachet wrench (2007-07-03),
9. D545154 - Ledge lock of joint wrench (2007-06-26),
10. 7210578 - Display unit for storing tool assembly (2007-05-01),
11. 7168346 - Hand tool having an adjustable head with a joint lock mechanism (2007-01-30),
12. 7165480 - Hand tool having positioning and locking joint (2007-01-23),
13. 7131356 - Hand tool having an adjustable head with joint lock mechanism (2006-11-07),
14. 7118406 - Socket connecting structure (2006-10-10),
15. 7093520 - Gear wrench allowing easy force application (2006-08-22),
Company Overview
Lea Way Hand Tool Corporation is a prominent manufacturer based in Taichung, Taiwan, specializing in the development and production of high-quality hand tools. The company focuses on innovation and precision engineering, catering to a diverse range of industries including automotive, construction, and woodworking. With a commitment to quality and performance, Lea Way Hand Tool Corporation leverages advanced manufacturing techniques to deliver reliable tools that meet the evolving needs of professionals and DIY enthusiasts alike.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

27 Patents

#64 in Taichung

#645 in Taiwan

#24,046 in the World

Taichung, TW
Taichung, Taiwan

Lea Way Hand Tool Corporation

Forward Citations = 321

8 inventors:

goldMedal Tom Tuanmu (10 out of 10 patents)

silverMedal Yu-Cheng Lin (7 out of 11 patents)

bronzeMedal Hsien Chung Tuan Mu (4 out of 4 patents)

4.  Hsien-Chung TuanMu (3 out of 3 patents)

5.  Sammy Tsai (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Lea Way Hand Tool Corporation. Retrieved from https://idiyas.com/company/lea-way-hand-tool

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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