Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HL

Hwa Hyoung Lee — 1 Patent

Overall (All Time): #2,989,573 of 4,157,543Top 75%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9278304 Gas adsorbing and sound absorbing composite structure of activated charcoal-wooden material composites for improving indoor air quality and removing radon gas, and manufacturing method thereof 2016-03-08