Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JR

Jung Hwan Ryu — 4 Patents in 2021

Hyundai Motor: 4 patents #157 of 2,212Top 8%
KMKia Motors: 3 patents #220 of 2,163Top 15%
Seojong-myeon, KR: #58 of 1,690 inventorsTop 4%
Overall (2021): #46,669 of 548,734Top 9%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11145879 Method and system for estimating and controlling water content of fuel cell 2021-10-12
11018358 Pinhole determination method and system for fuel cell Soon Woo Kwon 2021-05-25
10991964 Fuel cell system and method of controlling the same Soon Il Jeon 2021-04-27
10985388 Method and apparatus for estimating hydrogen crossover loss of fuel cell system Soon Woo Kwon 2021-04-20