For the Inventor, By the Inventor

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Hong Kong, China

Active Tools International (hk) Ltd.

USPTO Granted Patents = 24

Trademarks = 6

Forward Citations = 95

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26 inventors (with patents filed for the assignee):

Koon Fung Lam (5 out of 10 patents)

Jianghua Yan (4 out of 4 patents)

David Hong (4 out of 4 patents)

4. Wai Kwong Ching (3 out of 3 patents)

5. Ying Chi David Hong (2 out of 2 patents)

6. David Ying Chi Hong (2 out of 3 patents)

7. Ying Chi Hong (2 out of 2 patents)

8. Peter Christian Boldsen (2 out of 2 patents)

9. Steen Mandsfelt (2 out of 2 patents)

10. Huilong Ji (2 out of 2 patents)

11. Kong Fung Lam (1 out of 1 patent)

12. Thomas Lætgaard (1 out of 4 patents)

13. Allen Hong (1 out of 1 patent)

14. David Hong Ying Chi (1 out of 1 patent)

15. Ting Chi Lam (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 12496788 - Sealant bottle (2025-12-16),

2. 12005869 - Rubber bucket and tire repairing and inflation device (2024-06-11),

3. 11993036 - Tire sealant composition (2024-05-28),

4. 11904817 - Pipe connector assembly and tire maintenance apparatus having same (2024-02-20),

5. 11662046 - Connection member, connection assembly and tire repair machine (2023-05-30),

6. 11400667 - Tire maintenance means (2022-08-02),

7. 11292658 - One-way valve, and tire repair sealant bottle having same (2022-04-05),

8. 11135792 - Tire repairing system (2021-10-05),

9. 10975976 - Safety valve (2021-04-13),

10. 10753351 - Air inflating device and tire repair machine comprising same (2020-08-25),

11. D881238 - Compressor (2020-04-14),

12. D826022 - Handheld compressor (2018-08-21),

13. 9657730 - Heat dissipation structure of tire repair machine (2017-05-23),

14. 9492976 - Sealant bottle for tire repair of vehicle (2016-11-15),

15. 9050866 - Sealant bottle for tire repair of gas pressure type (2015-06-09),

Active Tools International (HK) Ltd. is a leading provider of high-quality hand tools and power tools. With a wide range of products and a commitment to innovation and customer satisfaction, we strive to offer the best tools for various industries such as construction, automotive, and manufacturing. Our products are designed to be durable, reliable, and efficient, helping professionals and DIY enthusiasts achieve their goals. Visit our website to explore our comprehensive range of tools and accessories.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

24 Patents

#139 in Hong Kong

#1,114 in China

#25,837 in the World

Hong Kong, China

Active Tools International (hk) Ltd.

Forward Citations = 95

26 inventors:

Koon Fung Lam (5 out of 10 patents)

Jianghua Yan (4 out of 4 patents)

David Hong (4 out of 4 patents)

4. Wai Kwong Ching (3 out of 3 patents)

5. Ying Chi David Hong (2 out of 2 patents)

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