Inventor
MATUSIK FRANK J
US7 patents
⚠️ This page may combine multiple inventors who share the name “MATUSIK FRANK J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT METAL AND REFINING COMPANY
6 patentsUS4524610AJun 25, 1985
In-line vibratory viscometer-densitometer
NAT METAL AND REFINING COMPANY197 citations96
US5054313AOct 8, 1991
Control circuitry for viscosity sensors
NAT METAL AND REFINING COMPANY77 citations91
US4488427ADec 18, 1984
Rotational vibratory viscometer transducer and circuit
NAT METAL AND REFINING COMPANY29 citations91
US4299119ANov 10, 1981
Incremental rotary viscometer
NAT METAL AND REFINING COMPANY36 citations90
US4754640AJul 5, 1988
Apparatus and method for determining the viscoelasticity of liquids
NAT METAL AND REFINING COMPANY46 citations88
US4566181AJan 28, 1986
Rotational vibratory viscometer transducer and circuit
NAT METAL AND REFINING COMPANY19 citations72