Growing community of inventors

Ansan-si, South Korea

Chang Ho Ham

Average Co-Inventor Count = 1.81

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 13

Chang Ho HamDong Myoung Ryoo (5 patents)Chang Ho HamHyun Soo Ko (1 patent)Chang Ho HamEun Sik Kim (1 patent)Chang Ho HamBuyeol Ryu (1 patent)Chang Ho HamBosung Lee (1 patent)Chang Ho HamHan Poong Lee (1 patent)Chang Ho HamJae Hyub Hyun (1 patent)Chang Ho HamSeung Chun Choi (1 patent)Chang Ho HamChang Ho Ham (10 patents)Dong Myoung RyooDong Myoung Ryoo (6 patents)Hyun Soo KoHyun Soo Ko (306 patents)Eun Sik KimEun Sik Kim (133 patents)Buyeol RyuBuyeol Ryu (6 patents)Bosung LeeBosung Lee (2 patents)Han Poong LeeHan Poong Lee (1 patent)Jae Hyub HyunJae Hyub Hyun (1 patent)Seung Chun ChoiSeung Chun Choi (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hyundai Motor Company (10 from 18,700 patents)

2. Kia Motors Corporation (3 from 8,089 patents)

3. Mann+hummel Gmbh (1 from 1,012 patents)


10 patents:

1. 10864868 - Tube-holding device for vehicle

2. 10562758 - Valve apparatus of urea tank for vehicle

3. 10544750 - Control device for recognizing fuel type, a fuel pump control system having the same, and a method thereof

4. 10006421 - Fuel filter for diesel engine

5. 9879641 - Heater control apparatus and heater control method of fuel filter for vehicle

6. 9874127 - Urea injection device for selective catalyst reduction device

7. 9810181 - Heater device of diesel fuel filter

8. 9745923 - Fuel filter heating device

9. 9604158 - Separator for separating fluid and SCR urea injection system using the same

10. 9315098 - Urea solution venting system for vehicle

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1/2/2026
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