US

Upal Sengupta

RA Rayovac: 2 patents #12 of 39Top 35%
ZS Zenith Data Systems: 1 patents #10 of 24Top 45%
📍 Three Rivers, MI: #3 of 23 inventorsTop 15%
🗺 Michigan: #173 of 4,492 inventorsTop 4%
Overall (1997): #9,926 of 185,788Top 6%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5661393 Circuit and method for detecting and indicating the state of charge of a cell or battery 1997-08-26
5652496 Electrical device having a discriminating, rechargeable battery system James G. Pilarzyk, Steven R. Ruth 1997-07-29
5629604 Computer power supply system Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz 1997-05-13