Growing community of inventors

Taichung, Taiwan

Hsien-Chung Tuan-Mu

Average Co-Inventor Count = 1.55

ph-index = 8

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 242

Hsien-Chung Tuan-MuDavid Ling (6 patents)Hsien-Chung Tuan-MuPaul Stephen Steinweg (3 patents)Hsien-Chung Tuan-MuChung-Sung Li (2 patents)Hsien-Chung Tuan-MuSammy Tsai (1 patent)Hsien-Chung Tuan-MuHsien-Chung Tuan-Mu (17 patents)David LingDavid Ling (17 patents)Paul Stephen SteinwegPaul Stephen Steinweg (8 patents)Chung-Sung LiChung-Sung Li (2 patents)Sammy TsaiSammy Tsai (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Easco Hand Tools, Inc. (7 from 74 patents)

2. Hand Tool Design Corporation (4 from 50 patents)

3. Apex Brands, Inc. (2 from 285 patents)

4. Apex Tool (hk) Limited Taiwan Branch (2 from 6 patents)

5. Lea Way Hand Tool Corporation (1 from 27 patents)

6. Apex Took (hk) Limited Taiwan Branch (1 from 1 patent)


17 patents:

1. 9975225 - Tool locking mechanism

2. 8978524 - Ratchetable open-ended wrench

3. 8813612 - Tool locking mechanism

4. 8631725 - Ratchetable open-ended wrench

5. 8375831 - Tool locking mechanism

6. 8347764 - Ratchetable open-ended wrench

7. 7673542 - Spanner with prevention of disengagement of fasteners

8. 7340983 - Spanner with prevention of disengagement of fasteners

9. 7231851 - Reversible ratcheting tool

10. 7210578 - Display unit for storing tool assembly

11. 7137320 - Ratcheting tool driver

12. 6907803 - Single-direction operation type ratchet wrench structure

13. 6868759 - Reversible ratcheting tool

14. 6701768 - Process for making ratchet wheels

15. 6629477 - Reversible ratchet wrench with high torsion

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as of
12/10/2025
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