% Expired Patents = 83.3

Forward Citations = 32

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9 inventors (with patents filed for the assignee):

Kung Ying Law (3 out of 3 patents)

Law Kung Ying (3 out of 5 patents)

Yut Chai Loh (2 out of 2 patents)

4. Wolfgang Rosner (1 out of 16 patents)

5. David Lapp (1 out of 20 patents)

6. Krithika Kalyanasundaram (1 out of 4 patents)

7. Loh Yut Chai (1 out of 1 patent)

8. Neal Frank Gunderson (1 out of 23 patents)

9. Scott Vogel Mitzner (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 10022826 - Method and apparatus for forming a hard disk drive base plate with an extended height (2018-07-17),

2. 9536572 - Apparatus with sealed cavity formed by at least one impermeable weld (2017-01-03),

3. 9522446 - Method and apparatus for forming a hard disk drive base plate with an extended height (2016-12-20),

4. 9481932 - Method and apparatus for progressively forging a hard disk drive base plate (2016-11-01),

5. 7849578 - Progressive and transfer die stamping (2010-12-14),

6. 7546669 - Progressive and transfer die stamping (2009-06-16),

Cheung Woh Technologies Ltd. is a leading provider of innovative solutions for the semiconductor industry. With a focus on research and development, we offer a wide range of products and services including precision engineering, automation solutions, and customized equipment. Our expertise and commitment to quality have made us a trusted partner for many semiconductor companies worldwide.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

6 Patents

#303 in Singapore

Singapore, Singapore

Cheung Woh Technologies Ltd.