RK

Ralph James Klingenstein

📍 Boston, MA: #25 of 224 inventorsTop 15%
🗺 Massachusetts: #422 of 4,501 inventorsTop 10%
Overall (1997): #27,057 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5700252 Lumen-seeking nasogastric tube and method — 1997-12-23
5685321 Device and method to facilitate colonoscopy by externally supporting the colon — 1997-11-11