4sphere LLC

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 164
 
 
 
F03D WIND MOTORS139

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8926261 Turbine assemblyApr 18, 12Jan 06, 15[F03D, F01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0184,515 TURBINE ASSEMBLYAbandonedJan 05, 15Jul 02, 15[F03D, F01D]

Top Inventors for This Owner

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