Donga Manufacturing Corp.

Calculating rank

USPTO Granted Patents = 1

Forward Citations = 1

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6 inventors (with patents filed for the assignee):

Bo Ki Hong (1 out of 60 patents)

Byeong Heon Jeong (1 out of 5 patents)

Seung Kyung Ko (1 out of 1 patent)

4. Stephen Bowers (1 out of 1 patent)

5. Yoon Gue Choi (1 out of 1 patent)

6. Ho Jin Lee (1 out of 67 patents)

1 patent: Sort by Forward Citations

1. 9640807 - Integrated fluorine gasket manufactured by injection molding for hydrogen fuel cells (2017-05-02),

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USPTO Data Jan 1 1976 - Oct 27 2026

1 Patents

#68 in Ansan

#5,810 in South Korea

Ansan, South Korea

Donga Manufacturing Corp.

Forward Citations = 1

6 inventors:

Bo Ki Hong (1 out of 60 patents)

Byeong Heon Jeong (1 out of 5 patents)

Seung Kyung Ko (1 out of 1 patent)

4. Stephen Bowers (1 out of 1 patent)

5. Yoon Gue Choi (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Donga Manufacturing Corp.. Retrieved from https://idiyas.com/company/donga-manufacturing

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]