Assignee
QUARTZTRONICS INC
US·13 granted patents·412 citations·filing 1983–1990
Top patents by PatentIndex Score
13 records- 0194US4526480AFluid density temperature measurement apparatus and methodQUARTZTRONICS INC·Filed 1984·Granted Jul 2, 1985·86 cites·5 claims
- 0290US4535638AResonator transducer system with temperature compensationQUARTZTRONICS INC·Filed 1983·Granted Aug 20, 1985·55 cites·32 claims
- 0383US4644796APressure measurement apparatus and methodQUARTZTRONICS INC·Filed 1985·Granted Feb 24, 1987·50 cites·9 claims
- 0483US4550610AResonator pressure transducerQUARTZTRONICS INC·Filed 1983·Granted Nov 5, 1985·36 cites·19 claims
- 0580US4644803AForce measurement apparatus and methodQUARTZTRONICS INC·Filed 1985·Granted Feb 24, 1987·45 cites·12 claims
- 0678US4754646AResonator pressure transducer structure and method of manufactureQUARTZTRONICS INC·Filed 1987·Granted Jul 5, 1988·36 cites·8 claims
- 0777US4574639APressure force measurement apparatus and methodQUARTZTRONICS INC·Filed 1983·Granted Mar 11, 1986·31 cites·19 claims
- 0866US5030876AMounting structure for crystal resonatorQUARTZTRONICS INC·Filed 1989·Granted Jul 9, 1991·15 cites·22 claims
- 0965US5022130AMethod of manufacturing crystal resonators having low acceleration sensitivityQUARTZTRONICS INC·Filed 1989·Granted Jun 11, 1991·16 cites·18 claims
- 1052US4837475ACrystal resonator with low acceleration sensitivity and method of manufacture thereofQUARTZTRONICS INC·Filed 1987·Granted Jun 6, 1989·9 cites·22 claims
- 1149US4660420AAT-cut crystal resonator pressure transducerQUARTZTRONICS INC·Filed 1985·Granted Apr 28, 1987·16 cites·4 claims
- 1248US5168191ACrystal resonator with low acceleration sensitivity and method of manufacture thereofQUARTZTRONICS INC·Filed 1990·Granted Dec 1, 1992·10 cites·3 claims
- 1344US4935658ACrystal resonator with low acceleration sensitivity and method of manufacture thereofQUARTZTRONICS INC·Filed 1988·Granted Jun 19, 1990·7 cites·4 claims
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