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Class Information
Number: 429/4
Name: Chemistry: electrical current producing apparatus, product, and process > With sonic or ultrasonic feature
Description: Apparatus having periodic motion applied to the same by sonic or ultrasonic means and the related process.

Patents under this class:

Patent Number Title Of Patent Date Issued
8313657 Method and system for removal of ammonia from wastewater by electrolysis Nov. 20, 2012
7474075 Devices powered by conformable fuel cells Jan. 6, 2009
7399405 Method and apparatus for separating petroleum Jul. 15, 2008
7122257 Fuel cell reactant supply Oct. 17, 2006
7098157 Method and apparatus for thermally treating disk-shaped substrates Aug. 29, 2006
6047246 Computer-controlled ultrasonic cleaning system Apr. 4, 2000
5932991 System and method for battery charging with acoustic excitation Aug. 3, 1999
5871861 Lithium ion secondary cell Feb. 16, 1999
5788943 Battery-grade nickel hydroxide and method for its preparation Aug. 4, 1998
5776539 Process of preparing carbon support coated with polyolefin and of preparing gas diffusion electrode employing said carbon support Jul. 7, 1998
5738691 Ultrasonic extraction of plasticizer from electrochemical cells Apr. 14, 1998
5691079 Battery formed of stacked flat cells Nov. 25, 1997
5432017 Battery pack and method of forming same Jul. 11, 1995
5352544 Fast ion conductors Oct. 4, 1994
5300125 Method of bonding a battery package Apr. 5, 1994
4981490 Packed battery and method of making the same Jan. 1, 1991
4883497 Formation of thin walled ceramic solid oxide fuel cells Nov. 28, 1989
4290833 Method for sealing cation exchange membranes of carboxylic acid type fluorinated polymers Sep. 22, 1981
4190702 Batteries Feb. 26, 1980
4125680 Bipolar carbon-plastic electrode structure-containing multicell electrochemical device and method of making same Nov. 14, 1978
4025698 Accumulator battery apparatus and method May. 24, 1977

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