Inventor · disambiguated record
John M. Callahan
Also filed as: CALLAHAN JOHN · CALLAHAN JOHN M
32 granted patents·495 citations·filing 1994–2016
97Inventor score
Files withNANOAMP SOLUTIONS INC9ENABLE SEMICONDUCTOR INC5VLSI TECHNOLOGY INC5CONVERSANT INTELLECTUAL PROPERTY MAN INC2HOBERMAN BARRY A2
Top patents by PatentIndex Score
32 records- 0195US7348804B2Low leakage and data retention circuitryMOSAID DELAWARE INC·Filed 2007·Granted Mar 25, 2008·25 cites·33 claims
- 0295US7227383B2Low leakage and data retention circuitryMOSAID DELAWARE INC·Filed 2005·Granted Jun 5, 2007·27 cites·16 claims
- 0395US7173851B13.5 transistor non-volatile memory cell using gate breakdown phenomenaKILOPASS TECHNOLOGY INC·Filed 2005·Granted Feb 6, 2007·61 cites·7 claims
- 0493US8253438B2Low leakage and data retention circuitryHOBERMAN BARRY A·Filed 2011·Granted Aug 28, 2012·11 cites·19 claims
- 0588US5495436AAnti-fuse ROM programming circuitVLSI TECHNOLOGY INC·Filed 1995·Granted Feb 27, 1996·78 cites·15 claims
- 0687US8854077B2Low leakage and data retention circuitryHOBERMAN BARRY A·Filed 2012·Granted Oct 7, 2014·5 cites·18 claims
- 0785US6657880B1SRAM bit line architectureVIRTUAL SILICON TECHNOLOGY INC·Filed 2002·Granted Dec 2, 2003·39 cites·27 claims
- 0885US6355980B1Dual die memoryNANOAMP SOLUTIONS INC·Filed 1999·Granted Mar 12, 2002·65 cites·14 claims
- 0982US7592837B2Low leakage and data retention circuitryMOSAID TECHNOLOGIES CORP·Filed 2008·Granted Sep 22, 2009·10 cites·63 claims
- 1080US7940081B2Low leakage and data retention circuitryMOSAID TECHNOLOGIES INC·Filed 2009·Granted May 10, 2011·5 cites·20 claims
- 1179US7443197B2Low leakage and data retention circuitryMOSAID TECHNOLOGIES INC·Filed 2007·Granted Oct 28, 2008·6 cites·47 claims
- 1270US9350349B2Low leakage and data retention circuitryCONVERSANT INTELLECTUAL PROPERTY MAN INC·Filed 2014·Granted May 24, 2016·1 cites·16 claims
- 1370US5418486AUniversal digital filter for noisy linesVLSI TECHNOLOGY INC·Filed 1994·Granted May 23, 1995·22 cites·18 claims
- 1469US6181172B1High voltage detect circuit with increased long term reliabilityPHILIPS ELECTRONICS NA·Filed 1995·Granted Jan 30, 2001·24 cites·4 claims
- 1558US7069482B1ROM error-correction controlNANOAMP SOLUTIONS INC·Filed 2000·Granted Jun 27, 2006·6 cites·19 claims
- 1658US5604694ACharge pump addressingVLSI TECHNOLOGY INC·Filed 1996·Granted Feb 18, 1997·19 cites·28 claims
- 1757US5525921ALogic suppression of input and ground spikes for synchronized inputsVLSI TECHNOLOGY INC·Filed 1994·Granted Jun 11, 1996·14 cites·4 claims
- 1856US6977860B1SRAM power reductionVIRTUAL SILICON TECHNOLOGY INC·Filed 2004·Granted Dec 20, 2005·9 cites·17 claims
- 1955US6694448B2SRAM row redundancyNANOAMP SOLUTIONS INC·Filed 2001·Granted Feb 17, 2004·9 cites·10 claims
- 2053US9722605B2Low leakage and data retention circuitryCONVERSANT INTELLECTUAL PROPERTY MAN INC·Filed 2016·Granted Aug 1, 2017·0 cites·12 claims
- 2153US6713855B2Dual die memoryNANOAMP SOLUTIONS INC·Filed 2001·Granted Mar 30, 2004·4 cites·19 claims
- 2253US6593646B2Dual die memoryNANOAMP SOLUTIONS INC·Filed 2002·Granted Jul 15, 2003·4 cites·18 claims
- 2351US6493414B1Die information logic and protocolNANOAMP SOLUTIONS INC·Filed 2001·Granted Dec 10, 2002·7 cites·3 claims
- 2450US5930180AROM bit sensingENABLE SEMICONDUCTOR INC·Filed 1997·Granted Jul 27, 1999·13 cites·20 claims
- 2550US5521875ADynamic single-ended sense amp improvement with charge share assistVLSI TECHNOLOGY INC·Filed 1994·Granted May 28, 1996·13 cites·2 claims
- 2646US6240029B1Memory column redundancyNANOAMP SOLUTIONS INC·Filed 2000·Granted May 29, 2001·5 cites·9 claims
- 2741US6559678B1Node predisposition circuitNANOAMP SOLUTIONS INC·Filed 2001·Granted May 6, 2003·2 cites·19 claims
- 2837US5942924ADigital circuit for conserving static current in an electronic deviceENABLE SEMICONDUCTOR INC·Filed 1997·Granted Aug 24, 1999·4 cites·15 claims
- 2935US6167543AMemory test mode circuitNANOAMP SOLUTIONS INC·Filed 1998·Granted Dec 26, 2000·4 cites·10 claims
- 3032US5923598ARow fuse detect circuitENABLE SEMICONDUCTOR INC·Filed 1998·Granted Jul 13, 1999·2 cites·14 claims
- 3130US5912861AROM/RAM overlap circuitENABLE SEMICONDUCTOR INC·Filed 1997·Granted Jun 15, 1999·0 cites·8 claims
- 3230US5898641AAddress transition circuit for a memoryENABLE SEMICONDUCTOR INC·Filed 1998·Granted Apr 27, 1999·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →