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Class Information
Number: 429/47
Name: Chemistry: electrical current producing apparatus, product, and process > Having earth feature
Description: Apparatus wherein a portion of the earth constitutes a part of the battery.

Patents under this class:

Patent Number Title Of Patent Date Issued
8357461 Earth electromotive force generation method and apparatus Jan. 22, 2013
8247096 Negative electrode for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery Aug. 21, 2012
8012616 Advanced apparatus for generating electrical power from aquatic sediment/water interfaces Sep. 6, 2011
7808204 Controller for fuel cell system Oct. 5, 2010
6686076 Electrochemical conversion system Feb. 3, 2004
6624742 Wireless intelligent real estate sign and electronic lock box Sep. 23, 2003
5645951 Method of generating electric energy from biological raw materials Jul. 8, 1997
4457988 Earth battery Jul. 3, 1984
4278743 Generation of electrical energy Jul. 14, 1981
4153757 Method and apparatus for generating electricity May. 8, 1979

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