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For the Inventor, By the Inventor

Taoyuan, Taiwan

Assoma Inc.


USPTO Granted Patents = 14


Forward Citations = 44

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12 inventors (with patents filed for the assignee):

goldMedal Huan-Jan Chien (10 out of 28 patents)

silverMedal Chin-Cheng Wang (9 out of 9 patents)

bronzeMedal Chih-Hsien Shih (9 out of 9 patents)

4.  Chih-Kuan Shih (7 out of 7 patents)

5.  Shu-Yen Chien (2 out of 2 patents)

6.  Chi Wei Shi (2 out of 2 patents)

7.  Yu-Lun Jhang (1 out of 1 patent)

8.  Ching-Chang Wang (1 out of 1 patent)

9.  Chi-Wei Shi (1 out of 1 patent)

10.  Shi Chi-Wei (1 out of 1 patent)

11.  Peng-Hsiang Chen (1 out of 1 patent)

12.  Yuan Hung Lin (1 out of 1 patent)


14 patents:

1. 11739642 - Manufacturing method of 3-dimensional plastic impeller of centrifugal pump and the impeller (2023-08-29),
2. 10267327 - Magnetic drive pump (2019-04-23),
3. 10190593 - Magnetic drive pump (2019-01-29),
4. 9951778 - Permanent magnet motor pump (2018-04-24),
5. 9897102 - Structure improvement of pump casing with PFA liner (2018-02-20),
6. 9702364 - Permanent magnet motor pump (2017-07-11),
7. 9670934 - Magnetic drive pump (2017-06-06),
8. 9599113 - Permanent magnet motor pump (2017-03-21),
9. 9169842 - Permanent magnet canned motor pump with corrosion-protection housing (2015-10-27),
10. 8597000 - Structural improvement of a canned motor pump (2013-12-03),
11. 7033146 - Sealed magnetic drive sealless pump (2006-04-25),
12. 6854957 - Seal of a vertical pump (2005-02-15),
13. 6475378 - Cartridge filter (2002-11-05),
14. 5184945 - Bushing structure for using in magnetically driving centrifugal pumps (1993-02-09),
Assoma Inc. is a leading technology company specializing in innovative solutions for companies in various industries. With a strong focus on research and development, we offer cutting-edge products and services that help our clients stay competitive in the ever-evolving market. Our team of experts is committed to delivering exceptional results by leveraging the latest technologies and industry best practices. Visit our website to learn more about our offerings and how we can transform your business.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

14 Patents

#92 in Taoyuan

#1,067 in Taiwan

#40,882 in the World

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Taoyuan, Taiwan

Assoma Inc.

Forward Citations = 44

12 inventors:

goldMedal Huan-Jan Chien (10 out of 28 patents)

silverMedal Chin-Cheng Wang (9 out of 9 patents)

bronzeMedal Chih-Hsien Shih (9 out of 9 patents)

4.  Chih-Kuan Shih (7 out of 7 patents)

5.  Shu-Yen Chien (2 out of 2 patents)

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