Upal Sengupta — 9 Patents at Zenith Data Systems

Upal Sengupta has been granted 9 US patents while listed as an inventor at Zenith Data Systems. The first was granted in 1996 and the most recent in November 2001. Upal Sengupta ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Upal Sengupta in Three Rivers, MI, US.

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Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6320354	Method and apparatus for battery charging	John Wendell Oglesbee	2001-11-20	$37,694,000
6134612	External modular bay for housing I/O devices	Larry D. Bailey, Rodman S. Brahman, Peter A. Ojeda, William C. Hallowell, Larry L. Jeffery +5 more	2000-10-17	$59,000
5847546	System and apparatus for generating a continuosly variable reference signal for controlling battery cell charging	Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz	1998-12-08	$13,000
5838141	Method for generating a continuously variable reference signal for controlling battery cell charging	Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz	1998-11-17	$16,000
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	$7,912,000
5561361	Computer power supply and battery recharging system	Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz	1996-10-01	$13,198,000
5541490	Computer power supply system	Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz	1996-07-30	$12,857,000

Upal Sengupta — 9 Patents

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