The Rovac Corporation
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 09, 1997 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 277 Total Citation Count
- Jul 25, 1979 Earliest Filing
- 9 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
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]
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