Assignee
CATALYST SEMICONDUCTOR INC
US·35 granted patents·3 pending applications·1,308 citations·filing 1988–2008
Top patents by PatentIndex Score
38 records- 0197US6518737B1Low dropout voltage regulator with non-miller frequency compensationCATALYST SEMICONDUCTOR INC·Filed 2001·Granted Feb 11, 2003·175 cites·13 claims
- 0295US6710583B2Low dropout voltage regulator with non-miller frequency compensationCATALYST SEMICONDUCTOR INC·Filed 2003·Granted Mar 23, 2004·82 cites·16 claims
- 0394US7323828B2LED current bias control using a step down regulatorCATALYST SEMICONDUCTOR INC·Filed 2005·Granted Jan 29, 2008·46 cites·21 claims
- 0493US7324380B2Method for trimming the temperature coefficient of a floating gate voltage referenceCATALYST SEMICONDUCTOR INC·Filed 2006·Granted Jan 29, 2008·52 cites·21 claims
- 0592US7323742B2Non-volatile memory integrated circuitCATALYST SEMICONDUCTOR INC·Filed 2005·Granted Jan 29, 2008·24 cites·12 claims
- 0691US5793079ASingle transistor non-volatile electrically alterable semiconductor memory deviceCATALYST SEMICONDUCTOR INC·Filed 1996·Granted Aug 11, 1998·100 cites·31 claims
- 0788US5313429AMemory circuit with pumped voltage for erase and program operationsCATALYST SEMICONDUCTOR INC·Filed 1992·Granted May 17, 1994·67 cites·24 claims
- 0887US4949309AEEPROM utilizing single transistor per cell capable of both byte erase and flash eraseCATALYST SEMICONDUCTOR INC·Filed 1988·Granted Aug 14, 1990·135 cites·4 claims
- 0985US7547944B2Scalable electrically eraseable and programmable memory (EEPROM) cell arrayCATALYST SEMICONDUCTOR INC·Filed 2006·Granted Jun 16, 2009·11 cites·6 claims
- 1085US7149123B2Non-volatile CMOS reference circuitCATALYST SEMICONDUCTOR INC·Filed 2005·Granted Dec 12, 2006·18 cites·20 claims
- 1185US5216588ACharge pump with high output currentCATALYST SEMICONDUCTOR INC·Filed 1992·Granted Jun 1, 1993·71 cites·6 claims
- 1284US5033023AHigh density EEPROM cell and process for making the cellCATALYST SEMICONDUCTOR INC·Filed 1988·Granted Jul 16, 1991·51 cites·15 claims
- 1383US7557641B2Fractional charge pump for step-down DC-DC converterCATALYST SEMICONDUCTOR INC·Filed 2007·Granted Jul 7, 2009·21 cites·28 claims
- 1481US7245536B1Precision non-volatile CMOS reference circuitCATALYST SEMICONDUCTOR INC·Filed 2006·Granted Jul 17, 2007·12 cites·24 claims
- 1581US4861730AProcess for making a high density split gate nonvolatile memory cellCATALYST SEMICONDUCTOR INC·Filed 1988·Granted Aug 29, 1989·59 cites·3 claims
- 1678US7528436B2Scalable electrically eraseable and programmable memoryCATALYST SEMICONDUCTOR INC·Filed 2006·Granted May 5, 2009·12 cites·20 claims
- 1778US4811191ACMOS rectifier circuitCATALYST SEMICONDUCTOR INC·Filed 1988·Granted Mar 7, 1989·37 cites·19 claims
- 1877US6970037B2Programmable analog bias circuits using floating gate CMOS technologyCATALYST SEMICONDUCTOR INC·Filed 2003·Granted Nov 29, 2005·27 cites·30 claims
- 1977US5783471AStructure and method for improved memory arrays and improved electrical contacts in semiconductor devicesCATALYST SEMICONDUCTOR INC·Filed 1994·Granted Jul 21, 1998·41 cites·31 claims
- 2076US7535395B2Digital potentiometer including plural bulk impedance devicesCATALYST SEMICONDUCTOR INC·Filed 2007·Granted May 19, 2009·9 cites·3 claims
- 2176US7236046B2LED bias current control using adaptive fractional charge pumpCATALYST SEMICONDUCTOR INC·Filed 2005·Granted Jun 26, 2007·14 cites·23 claims
- 2272US4894802ANonvolatile memory cell for eeprom including a floating gate to drain tunnel area positioned away from the channel region to prevent trapping of electrons in the gate oxide during cell eraseCATALYST SEMICONDUCTOR INC·Filed 1988·Granted Jan 16, 1990·28 cites·3 claims
- 2370US6865113B2System and method for programming non-volatile memoryCATALYST SEMICONDUCTOR INC·Filed 2003·Granted Mar 8, 2005·22 cites·31 claims
- 2466US7042380B2Digital potentiometer with resistor binary weighting decodingCATALYST SEMICONDUCTOR INC·Filed 2004·Granted May 9, 2006·12 cites·43 claims
- 2566US6989562B2Non-volatile memory integrated circuitCATALYST SEMICONDUCTOR INC·Filed 2003·Granted Jan 24, 2006·11 cites·10 claims
- 2664US7005837B2Digital potentiometer including output bufferCATALYST SEMICONDUCTOR INC·Filed 2003·Granted Feb 28, 2006·11 cites·23 claims
- 2764US5796941AMethod for supervising software execution in a license restricted environmentCATALYST SEMICONDUCTOR INC·Filed 1996·Granted Aug 18, 1998·71 cites·21 claims
- 2863US7558111B2Non-volatile memory cell in standard CMOS processCATALYST SEMICONDUCTOR INC·Filed 2006·Granted Jul 7, 2009·5 cites·18 claims
- 2963US6771053B2Buffered configurable nonvolatile programmable digital potentiometerCATALYST SEMICONDUCTOR INC·Filed 2002·Granted Aug 3, 2004·11 cites·10 claims
- 3060US7345611B2Digital potentiometer including plural bulk impedance devicesCATALYST SEMICONDUCTOR INC·Filed 2003·Granted Mar 18, 2008·10 cites·81 claims
- 3160US5764586AIntermediate size non-volatile electrically alterable semiconductor memory deviceCATALYST SEMICONDUCTOR INC·Filed 1996·Granted Jun 9, 1998·23 cites·5 claims
- 3260US4903237ADifferential sense amplifier circuit for high speed ROMS, and flash memory devicesCATALYST SEMICONDUCTOR INC·Filed 1988·Granted Feb 20, 1990·17 cites·6 claims
- 3359US7324130B2LED driver with integrated bias and dimming control storageCATALYST SEMICONDUCTOR INC·Filed 2004·Granted Jan 29, 2008·6 cites·11 claims
- 3452US7012555B2Digital potentiometer including at least one bulk impedance deviceCATALYST SEMICONDUCTOR INC·Filed 2003·Granted Mar 14, 2006·7 cites·36 claims
- 3540US2009003074A1Scalable Electrically Eraseable And Programmable Memory (EEPROM) Cell ArrayCATALYST SEMICONDUCTOR INC·Filed 2008·Application pending·0 cites
- 3639US5543668ACharge stacking on-chip high-voltage generator and methodCATALYST SEMICONDUCTOR INC·Filed 1994·Granted Aug 6, 1996·10 cites·20 claims
- 3734US2008238513A1Hysteresis Circuit Without Static Quiescent CurrentCATALYST SEMICONDUCTOR INC·Filed 2007·Application pending·0 cites
- 3833US2009224843A1Programmable Crystal OscillatorCATALYST SEMICONDUCTOR INC·Filed 2008·Application pending·0 cites
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