Assignee
CEPE
FR28 patents
Top patents by PatentIndex Score
US5407525AApr 18, 1995
Method of frequency tuning a piezoelectric device and apparatus for the implementation of the method
CEPE22 citations90
US4484157ANov 20, 1984
Voltage controlled crystal oscillator having wide frequency range
CEPE29 citations84
US4714906ADec 22, 1987
Dielectric filter with variable central frequency
CEPE28 citations80
US4216371AAug 5, 1980
Device for heat regulation of an enclosure particularly for oscillating piezoelectric crystal, and enclosure comprising such a device
CEPE28 citations79
US4656707AApr 14, 1987
Method of fabricating a high-frequency piezoelectric resonator
CEPE20 citations77
US4743865AMay 10, 1988
Quartz-crystal microwave oscillator of the common-emitter transmission type with two transistors and a predetermined loaded Q factor
CEPE9 citations73
US4646034AFeb 24, 1987
Very high frequency quartz oscillator
CEPE7 citations69
US4616194AOct 7, 1986
Piezoelectric oscillator with crystal filter and temperature compensation
CEPE8 citations69
US4611182ASep 9, 1986
Method and device for controlling the heating of a thermostatically controlled enclosure for an oscillator
CEPE15 citations69
US4600900AJul 15, 1986
Piezoelectric oscillator having filters to prevent unwanted modes
CEPE14 citations69
US4540956ASep 10, 1985
High frequency band-pass amplifier with adjustable impedance and oscillator including it
CEPE9 citations69
US4063194ADec 13, 1977
Wide-band frequency-controlled crystal oscillator
CEPE8 citations69
US4020426AApr 26, 1977
Temperature compensation circuit for crystal oscillator
CEPE9 citations69
US5053605AOct 1, 1991
Device for thermal regulation of an enclosure
CEPE9 citations68
US4888471ADec 19, 1989
An improvement in a device for high accuracy thermal regulations of an enclosure
CEPE7 citations68
US4609885ASep 2, 1986
Device providing compensation for acceleration sensitivity of an oscillator
CEPE9 citations68
US4517485AMay 14, 1985
High-frequency piezoelectric resonator with reinforced electrode connection
CEPE10 citations68
US4686324AAug 11, 1987
Cold-seal package for withstanding high temperatures
CEPE14 citations67
US4626732ADec 2, 1986
Piezoelectric resonator
CEPE13 citations67
US4859898AAug 22, 1989
Suspension springs for a vibrating piezoelectric plate
CEPE9 citations65
US5025228AJun 18, 1991
Ultrastable oscillator functioning at atmospheric pressure and under vacuum
CEPE15 citations64
US4412188AOct 25, 1983
Temperature-compensated crystal oscillator
CEPE13 citations64
US4833426AMay 23, 1989
Controllable frequency, temperature compensated piezoelectric oscillator of high spectral purity
CEPE15 citations60
US4851791AJul 25, 1989
Temperature-compensated piezoelectric oscillator
CEPE13 citations59
US4684900AAug 4, 1987
Optical pumping cesium resonator and laser diode detection
CEPE14 citations59
US5275697AJan 4, 1994
Process for dissolution of a crystalline material
CEPE1 citations45
US4205284AMay 27, 1980
Electrical frequency filter comprising piezoelectric crystals
CEPE3 citations45
US4397884AAug 9, 1983
Process for stabilizing in time a piezoelectric resonator
CEPE1 citations33