The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2008
Filed:
Nov. 19, 2003
J. Thomas Fowler, Marblehead, MA (US);
Allan Chertok, Bedford, MA (US);
Darrell J. King, Belmont, MA (US);
Gerald R. Larocque, Bedford, MA (US);
Per Onnerud, Framingham, MA (US);
Jay J. Shi, Acton, MA (US);
J. Thomas Fowler, Marblehead, MA (US);
Allan Chertok, Bedford, MA (US);
Darrell J. King, Belmont, MA (US);
Gerald R. Larocque, Bedford, MA (US);
Per Onnerud, Framingham, MA (US);
Jay J. Shi, Acton, MA (US);
Tiax LLC, Cambridge, MA (US);
Abstract
A system is provided for balancing state of charge among plural series connected electrical energy storage units that includes a power converter that selectively couples to an individual storage unit of the a string of electrical energy storage units and bidirectionally transfers energy between the individual storage unit and the string of storage units.