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Class Information
Number: 204/140
Name: Chemistry: electrical and wave energy >

Sub-classes under this class:

Class Number Class Name Patents
204/ Processes and products 0
204/ Apparatus (204/193) 0
204/193 Apparatus 149
204/900 Effecting a change in isomerization by wave energy 22
204/901 Effecting a color change by wave energy 10
204/902 Production of desired compound by wave energy in presence of a chemically designated nonreactant chemical treating agent (excluding water, chloroform, carbon tetrachloride, methylene chloride or benzene) 9
204/DIG.12 Electrochemical machining 4
204/DIG.13 Purification and treatment of electroplating baths and plating wastes 162
204/DIG.3 Auxiliary internally generated electrical energy 63
204/DIG.4 Electrolysis cell combined with fuel cell 69
204/DIG.5 Magnetic plus electrolytic 43
204/DIG.6 Unusual non-204 uses of electrolysis 27
204/DIG.7 Current distribution within the bath 157
204/DIG.8 Ac plus dc 28
204/DIG.9 Wave forms 142

Patents under this class:

Patent Number Title Of Patent Date Issued

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