Assignee
NAT METAL AND REFINING COMPANY
US·7 granted patents·429 citations·filing 1980–1991
Top patents by PatentIndex Score
7 records- 0196US4524610AIn-line vibratory viscometer-densitometerNAT METAL AND REFINING COMPANY·Filed 1983·Granted Jun 25, 1985·197 cites·24 claims
- 0284US5054313AControl circuitry for viscosity sensorsNAT METAL AND REFINING COMPANY·Filed 1990·Granted Oct 8, 1991·77 cites·8 claims
- 0378US4299119AIncremental rotary viscometerNAT METAL AND REFINING COMPANY·Filed 1980·Granted Nov 10, 1981·36 cites·25 claims
- 0476US4754640AApparatus and method for determining the viscoelasticity of liquidsNAT METAL AND REFINING COMPANY·Filed 1987·Granted Jul 5, 1988·46 cites·10 claims
- 0574US4488427ARotational vibratory viscometer transducer and circuitNAT METAL AND REFINING COMPANY·Filed 1983·Granted Dec 18, 1984·29 cites·20 claims
- 0662US4566181ARotational vibratory viscometer transducer and circuitNAT METAL AND REFINING COMPANY·Filed 1984·Granted Jan 28, 1986·19 cites·3 claims
- 0759US5157962AVibratory viscometer transducer with isolation support for inline viscosity sensorNAT METAL AND REFINING COMPANY·Filed 1991·Granted Oct 27, 1992·25 cites·7 claims
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