JC

Jo-Yu Chuang

ST Sandvik Rock Tools: 1 patents #1 of 5Top 20%
TL Trw Limited: 1 patents #21 of 97Top 25%
📍 Sugar Land, TX: #3 of 45 inventorsTop 7%
🗺 Texas: #331 of 4,134 inventorsTop 9%
Overall (1989): #24,071 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4878550 Pilot-valve-controlled percussion drilling tool — 1989-11-07
4799844 Elliptical thread design — 1989-01-24