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For the Inventor, By the Inventor

Chungcheongbuk-do, South Korea

Microfilter Co., Ltd.


USPTO Granted Patents = 14


Trademarks = 1

Forward Citations = 138

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20 inventors (with patents filed for the assignee):

goldMedal Joung Whi Dong (6 out of 9 patents)

silverMedal Pilkang Hwang (6 out of 7 patents)

bronzeMedal Jaeik Lee (5 out of 5 patents)

4.  WhiDong Joung (4 out of 4 patents)

5.  PilKang Hwang (4 out of 5 patents)

6.  JaeIk Lee (2 out of 4 patents)

7.  Jaelk Lee (2 out of 2 patents)

8.  Kyong Su Lee (2 out of 4 patents)

9.  Pil Kang Hwang (2 out of 3 patents)

10.  Min Kyu Jung (2 out of 4 patents)

11.  Hyun Woo Lee (1 out of 290 patents)

12.  Dae Yeon Cho (1 out of 1 patent)

13.  Bo Kyoung Chae (1 out of 1 patent)

14.  Whi Dong Joung (1 out of 2 patents)

15.  Dong Hyun Kim (1 out of 77 patents)


14 patents:

1. D1036621 - Filter for water purification (2024-07-23),
2. D994835 - Filter case for water purification (2023-08-08),
3. 11484817 - Filter assembly capable of adjusting elimination of solid materials using flow-variable bypass flow path (2022-11-01),
4. D930787 - Filter for water purification (2021-09-14),
5. D895014 - Label for activation (2020-09-01),
6. 10173157 - Filter assembly (2019-01-08),
7. 10040005 - Serial flow channel type filter cartridge (2018-08-07),
8. 10016703 - Parallel flow channel type filter cartridge (2018-07-10),
9. 9993757 - Filter cartridge assembly (2018-06-12),
10. 9885445 - Locking-unlocking structure for guiding forward lifting of lifting body by repeating pushing action (2018-02-06),
11. 9863575 - Locking-unlocking structure for stopping lifting body, which is lifted and fallen through repetition of pushing actions, in lifting state and for releasing stopping state of lifting body (2018-01-09),
12. D776237 - Water purifying filter (2017-01-10),
13. D768814 - Water purifying filter (2016-10-11),
14. D768813 - Water purifying filter (2016-10-11),
Company Overview
Microfilter Co., Ltd. is a South Korean company based in Chungcheongbuk-do, specializing in advanced filtration technologies. The organization focuses on the development and manufacturing of high-performance microfiltration products, catering to various industries including water treatment, pharmaceuticals, and food processing. With a commitment to innovation, Microfilter leverages cutting-edge research to enhance filtration efficiency and sustainability, positioning itself as a key player in the global filtration market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

14 Patents

#10 in Chungcheongbuk-do

#826 in South Korea

#42,290 in the World

Chungcheongbuk-do, KR
Chungcheongbuk-do, South Korea

Microfilter Co., Ltd.

Forward Citations = 138

20 inventors:

goldMedal Joung Whi Dong (6 out of 9 patents)

silverMedal Pilkang Hwang (6 out of 7 patents)

bronzeMedal Jaeik Lee (5 out of 5 patents)

4.  WhiDong Joung (4 out of 4 patents)

5.  PilKang Hwang (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Microfilter Co., Ltd.. Retrieved from https://idiyas.com/company/microfilter-company

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]
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