Resources Contact Us Home
Browse by Category: Main > Chemistry
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

  Recently Added Patents
Three-term predictive adder and/or subtracter
Method of predicting a motion vector for a current block in a current picture
Process information structuring support method
Signal processor and signal processing method
Image processing apparatus, image forming system, and computer-readable storage medium
Local call local switching at handover
Patterned birefringent product
  Randomly Featured Patents
Synthesis of crystalline ZSM-35
Method of measuring coating using two-wavelength infrared reflectance
Disposable servingware containers with flange tabs
Method for the manufacture of printed circuit boards with plated resistors
Recovery of sulfur from sulfur dioxide rich aqueous absorbents
Universal interconnection substrate
Convertible peripheral input device
Wheel and brake overspray guard
Thermosensitive recording member
Oil cooler with a retained, blow-out proof, and extrusion resistant gasket configuration