JJ

James B. Renfroe, Jr.

OE Otis Engineering: 1 patents #13 of 39Top 35%
📍 Valencia, CA: #5 of 24 inventorsTop 25%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #99,403 of 140,708Top 75%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4834176 Well valve — 1989-05-30