JH

James C. Hsien

📍 Concord, CA: #159 of 739 inventorsTop 25%
🗺 California: #106,790 of 386,348 inventorsTop 30%
Overall (All Time): #1,054,188 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5643102 Golf club set having progressively offset faces 1997-07-01
5433439 Golf club set having progressively offset faces 1995-07-18
D328484 Golf grip 1992-08-04
5082278 Golf club head with variable center of gravity 1992-01-21
4883274 Golf club head with variable center of gravity 1989-11-28