RJ

Robert T. Jeffery

📍 San Francisco, CA: #163 of 582 inventorsTop 30%
🗺 California: #4,598 of 17,285 inventorsTop 30%
Overall (1997): #85,385 of 185,788Top 50%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5626094 Tactile last-step indicator for stair safety Brian F. Donnelly, Robert S. Krolick 1997-05-06