The Rovac Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5328215 Pipe joint assemblySep 14, 92Jul 12, 94[F16L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5695224 Pipe joint assemblyExpiredAug 14, 95Dec 09, 97[F16L]
5496073 Disengagement tool for use with a pipe joint assemblyExpiredNov 29, 93Mar 05, 96[F16L]
4738111 Power unit for converting heat to powerExpiredDec 04, 85Apr 19, 88[F01K]
4494386 Vapor refrigeration cycle system with constrained rotary vane compressor and low vapor pressure refrigerantExpiredMar 15, 82Jan 22, 85[F25D]
4410305 Vane type compressor having elliptical stator with doubly-offset rotorExpiredJun 08, 81Oct 18, 83[F04C]
4384833 Rotary machine of canted vane type having centering ballExpiredJan 28, 80May 24, 83[F04C, F01C]
4354807 Compressor-expander of the vane type having canted vane cavityExpiredMay 02, 80Oct 19, 82[F01C]
4299097 Vane type compressor employing elliptical-circular profileExpiredJun 16, 80Nov 10, 81[F25B, F03C]
4241591 Air conditioning system employing dual cycleExpiredJul 25, 79Dec 30, 80[F25D]

Top Inventors for This Owner

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