HP

Harold D. Portnoy

📍 Bloomfield Hills, MI: #10 of 52 inventorsTop 20%
🗺 Michigan: #694 of 3,452 inventorsTop 25%
Overall (1989): #107,919 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4867741 Physiological draining system with differential pressure and compensating valves 1989-09-19