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Class Information
Number: 204/
Name: Chemistry: electrical and wave energy > Processes and products
Description: Processes falling and the products necessarily resulting therefrom where not provided for elsewhere.

Sub-classes under this class:

Class Number Class Name Patents
204/192.1 Coating, forming or etching by sputtering 751
204/554 Electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation) 179
204/155 Electrical, or wave energy in magnetic field 159
204/450 Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere 667
204/164 Electrostatic field or electrical discharge 743
204/157.15 Processes of treating materials by wave energy 587
204/192.38 Vacuum arc discharge coating 268

Patents under this class:

Patent Number Title Of Patent Date Issued

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