For the Inventor, By the Inventor

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Ulsan, South Korea

Kum LLC

USPTO Granted Patents = 19

% Expired Patents = 26.3

EPO Patents = 6

Forward Citations = 61

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13 inventors (with patents filed for the assignee):

Fritz Lüttgens (8 out of 8 patents)

Fritz Lüttgens (5 out of 9 patents)

Yun Jae Jung (3 out of 16 patents)

4. Anbumani Neelamegam (3 out of 3 patents)

5. Chan Gu Yun (3 out of 3 patents)

6. Dong Hoon Lee (2 out of 235 patents)

7. Young Joo Yun (2 out of 3 patents)

8. Sang Ho Bae (2 out of 3 patents)

9. Young Il Park (2 out of 2 patents)

10. Seung Myeon Bae (1 out of 2 patents)

11. Fritz Luettgens (1 out of 3 patents)

12. Sam Gyun Lee (1 out of 4 patents)

13. Jin Su Choi (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. 12506300 - Connector assembly (2025-12-23),

2. 12506284 - Waterproof electrical connector (2025-12-23),

3. 11978983 - Connector assembly for use in a vehicle (2024-05-07),

4. 11824308 - Connector assembly having a device for dual position confirmation (2023-11-21),

5. 11688979 - Connector assembly (2023-06-27),

6. 8881410 - Sharpener, especially for a cosmetic or pharmaceutical pencil (2014-11-11),

7. 8769835 - Pencil sharpener and method of producing it (2014-07-08),

8. 7363714 - Pencil sharpener (2008-04-29),

9. 7225547 - Pencil sharpener (2007-06-05),

10. 7036231 - Sharpener for an oval pencil (2006-05-02),

11. 6976314 - Sharpener for soft-core pencils (2005-12-20),

12. 6722803 - Self-cleaning pencil (2004-04-20),

13. 6634108 - Sharpener for sharpening a soft-core pencil (2003-10-21),

14. 6397479 - Sharpener, in particular for soft-core pencils (2002-06-04),

15. 6381856 - Hand-held sharpener as a container-type sharpener (2002-05-07),

Kum LLC is a leading software development company specializing in creating innovative solutions for businesses. With a team of talented developers and designers, we provide custom software development, mobile app development, and web design services. Our goal is to help our clients achieve their business objectives and stay ahead of the competition. Contact us today to learn more about how Kum LLC can transform your business.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

19 Patents

#13 in Ulsan

#658 in South Korea

#32,571 in the World

Ulsan, South Korea

Kum LLC

Forward Citations = 61

13 inventors:

Fritz Lüttgens (8 out of 8 patents)

Fritz Lüttgens (5 out of 9 patents)

Yun Jae Jung (3 out of 16 patents)

4. Anbumani Neelamegam (3 out of 3 patents)

5. Chan Gu Yun (3 out of 3 patents)

Please report any incorrect information to [email protected]

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