PB

Philip D. Barrett

SP Supra Products: 1 patents #2 of 3Top 70%
📍 Vancouver, WA: #12 of 36 inventorsTop 35%
🗺 Washington: #241 of 1,406 inventorsTop 20%
Overall (1989): #69,050 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4887292 Electronic lock system with improved data dissemination Walter G. Henderson, Wayne F. Larson 1989-12-12