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Class Information
Number: 48/197
Name: Gas: heating and illuminating >

Sub-classes under this class:

Class Number Class Name Patents
48/ Acetylene 0
48/119 Retorts 35
48/127.1 Conversion of hydrocarbon gas and blending of product with further hydrocarbon gas, process 98
48/127.3 Methane (natural gas) -containing product, or treatment or recovery process 146
48/127.9 Apparatus for converting or treating hydrocarbon gas 507
48/128 Purifiers 132
48/144 Carburetors 15
48/170 Center and by-pass valves 1
48/173 Exhausters 1
48/174 Holders 25
48/180.1 Mixers 117
48/190 Distribution 59
48/197R Processes 1,380
48/61 Generators 790
48/DIG.1 Recirculation of gases produced to lower part of fuel bed 9
48/DIG.10 Computer resisted control 31
48/DIG.2 Slagging producer 130
48/DIG.3 High pressure 7
48/DIG.4 Powdered fuel injection 61
48/DIG.5 Diffusion membrane for gas reaction or separation 32
48/DIG.6 Underground gasification of coal 45
48/DIG.7 Slurry 76
48/DIG.8 Internal combustion engine for gas making 10
48/DIG.9 Solar gasification 10

Patents under this class:

Patent Number Title Of Patent Date Issued

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