Imperial Research LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 524
 
 
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 146

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7008201 Gapless screw rotor deviceMar 27, 04Mar 07, 06[F01C]
6913452 Offset thread screw rotor deviceJan 23, 04Jul 05, 05[F04C, F01C]
6719547 Offset thread screw rotor deviceOct 29, 02Apr 13, 04[F01C]
6719548 Twin screw rotor deviceOct 29, 02Apr 13, 04[F01C]
6599112 Offset thread screw rotor deviceOct 19, 01Jul 29, 03[F01C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0084,225 Air cycle system with variable mix recuperatorAbandonedOct 13, 05Apr 19, 07[F28B, F25B, F25D]
2004/0119,961 Illumination system with variable adjustment of the illuminationAbandonedNov 24, 03Jun 24, 04[G03B]

Top Inventors for This Owner

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