For the Inventor, By the Inventor

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Taichung, Taiwan

Door & Window Hardware Co.

USPTO Granted Patents = 18

Trademarks = 1

Forward Citations = 179

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13 inventors (with patents filed for the assignee):

Wei-Hung Chang (10 out of 11 patents)

Sung-Hui Lin (6 out of 6 patents)

Chih-Lun Hsieh (4 out of 5 patents)

4. James Chang (2 out of 7 patents)

5. Fanny Chiang (2 out of 14 patents)

6. Ching-Ko Lin (1 out of 5 patents)

7. Ko-Yu Chang (1 out of 2 patents)

8. Tung-Hsuan Tsai (1 out of 1 patent)

9. Dong-Shiuan Tsai (1 out of 1 patent)

10. Hsing-Hui Huang (1 out of 1 patent)

11. Hong-Sen Yan (1 out of 1 patent)

12. Yi-Ming Lin (1 out of 1 patent)

13. Jung-Chang Peng (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 10448754 - Clamp (2019-10-22),

2. 10323438 - Two-point lock (2019-06-18),

3. 9309691 - Sliding-door handle device (2016-04-12),

4. 9145720 - Magnetic locking apparatus (2015-09-29),

5. 9140043 - Hydraulic hinge buffer assembly for a door (2015-09-22),

6. 8955195 - Clamping-sliding assembly for a single-track-suspension sliding door (2015-02-17),

7. 8875549 - Lock assembly (2014-11-04),

8. 8745821 - Auto-closing device for a sliding door (2014-06-10),

9. 8407941 - Driving device for driving two door panels to synchronously move (2013-04-02),

10. 8307497 - Soft-closing device for a sliding door (2012-11-13),

11. 7963077 - Rail assembly for a glass door (2011-06-21),

12. 7841048 - Sliding assembly having a body for transversal sliding door (2010-11-30),

13. 7661279 - Lock assembly (2010-02-16),

14. 7637059 - Roller assembly for a frameless sliding glass door (2009-12-29),

15. 7516992 - Latch Structure (2009-04-14),

Door & Window Hardware Co. provides high-quality hardware products for doors and windows. With over 20 years of experience, we have become a trusted supplier in the industry. Our extensive range includes handles, locks, hinges, and other accessories for residential, commercial, and industrial purposes. We prioritize customer satisfaction and offer competitive prices without compromising on quality. Visit our website to explore our product catalog and place your order today.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

18 Patents

#82 in Taichung

#863 in Taiwan

#33,170 in the World

Taichung, Taiwan

Door & Window Hardware Co.

Forward Citations = 179

13 inventors:

Wei-Hung Chang (10 out of 11 patents)

Sung-Hui Lin (6 out of 6 patents)

Chih-Lun Hsieh (4 out of 5 patents)

4. James Chang (2 out of 7 patents)

5. Fanny Chiang (2 out of 14 patents)

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