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Hyeon-Yong Park

UNUnknown: 2 patents #12,644 of 83,584Top 20%

Seoul, KR: #18,030 of 39,741 inventorsTop 50%

Overall (All Time): #2,259,010 of 4,157,543Top 55%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5788589	Batting practice machine for baseball	Mun-Koing Koo	1998-08-04
D393029	Batting practice machine for baseball	Mun-Koing Koo	1998-03-31