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US Patent 7638971 Multiple device battery charger

Patent 7638971 was granted and assigned to Callpod, Inc. on December, 2009 by the United States Patent and Trademark Office.

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Patent
Patent
1

Patent attributes

Current Assignee
‌
Callpod, Inc.
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
76389711
Patent Inventor Names
Craig Lurey1
Darren Guccione1
Date of Patent
December 29, 2009
1
Patent Application Number
117265331
Date Filed
March 22, 2007
1
Patent Primary Examiner
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Patrick J. Assouad
1
Patent abstract

An improved method of charging multiple batteries and battery powered devices of different types at one time. Utilizing multiple methods of supplying DC power to external batteries, a user can charge a variety of devices at the same time. The power is routed in three distinct ways: directly to the output ports, through resistors, and through a switch converter. Then, using methods established and known to one in the art, external electronic devices may be attached to the output ports. Thus, the external battery will be charged through whichever route delivers the proper voltage. This design utilizes the logic contained within the external device for charging purposes.

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