A majority of patents describing wind turbines or wind energy are classified in the following IPC classifications.
{|border="2" cellspacing="0" cellpadding="4" width="100%"
| align = "center" bgcolor = "#99ccff4F81BD"|<font color="#FFFFFF">'''S.NO'''</font>| align = "center" bgcolor = "#99ccff4F81BD"|<font color="#FFFFFF">'''IPC Classification'''</font>| align = "center" bgcolor = "#99ccff4F81BD"|<font color="#FFFFFF">'''Description'''</font>
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|bgcolor = "#DCE6F1"| align = "center" bgcolor = "#99ccff"|1|bgcolor = "#DCE6F1"| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=F03D F03D]|bgcolor = "#DCE6F1"| Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust / '''Wind motors'''
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| align = "center" bgcolor = "#99ccff"|2
| Engineering elements or units; general measures for producing and maintaining effective functioning of machines or installations; thermal insulation in general/ '''Shafts; flexible shafts; elements of crankshaft mechanisms; rotary bodies other than gearing elements; bearings'''
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|bgcolor = "#DCE6F1"| align = "center" bgcolor = "#99ccff"|3|bgcolor = "#DCE6F1"| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=F16H F16H]|bgcolor = "#DCE6F1"| Engineering elements or units; general measures for producing and maintaining effective functioning of machines or installations; thermal insulation in general / '''Gearing'''
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| align = "center" bgcolor = "#99ccff"|4
|Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust / '''Machines or engines for liquids'''
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|bgcolor = "#DCE6F1"|align = "center" bgcolor = "#99ccff"|5|bgcolor = "#DCE6F1"|align = "center"|[http://www.wipo.int/ipcpub/#refresh=symbol¬ion=scheme&version=20110101&symbol=H02K H02K]|bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / '''Dynamo-electric machines'''
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| align = "center" bgcolor = "#99ccff"|6
|Generation, conversion, or distribution of electric power / '''Control or regulation of electric motors, generators, or dynamo-electric converters; controlling transformers, reactors or choke coils'''
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|bgcolor = "#DCE6F1"| align = "center" bgcolor = "#99ccff"|7|bgcolor = "#DCE6F1"| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=H02M H02M]|bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / '''Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation'''
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| align = "center" bgcolor = "#99ccff"|8
| Generation, conversion, or distribution of electric power / '''Circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy'''
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|bgcolor = "#DCE6F1"| align = "center" bgcolor = "#99ccff"|9|bgcolor = "#DCE6F1"| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=G06F G06F]|bgcolor = "#DCE6F1"| Computing; calculating; counting /'''Electric digital data processing'''
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| align = "center" bgcolor = "#99ccff"|10
| Controlling; regulating / '''Systems for regulating electric or magnetic variables'''
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|bgcolor = "#DCE6F1"| align = "center" bgcolor = "#99ccff"|11|bgcolor = "#DCE6F1"| align = "center"|[http://www.wipo.int/ipcpub/#refresh=page¬ion=scheme&version=20110101&symbol=H02H H02H]|bgcolor = "#DCE6F1"| Generation, conversion, or distribution of electric power / '''Emergency protective circuit arrangements'''
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