Inventor · disambiguated record
Dah-Weih Duan
Also filed as: DUAN DAH-WEIH
46 granted patents·1 pending application·7,034 citations·filing 1995–2024
99Inventor score
Files withINTERMEC IP CORP26NORTHROP GRUMMAN SYSTEMS CORP13INFOVALUE COMPUTING INC3IBM1INFO VALUE COMPUTING INC1
Top patents by PatentIndex Score
47 records- 0199US6285342B1Radio frequency tag with miniaturized resonant antennaINTERMEC IP CORP·Filed 1999·Granted Sep 4, 2001·367 cites·21 claims
- 0299US6249227B1RFID integrated in electronic assetsINTERMEC IP CORP·Filed 1998·Granted Jun 19, 2001·443 cites·7 claims
- 0399US6201474B1Magnetic tape storage media having RFID transpondersINTERMEC IP CORP·Filed 1998·Granted Mar 13, 2001·278 cites·7 claims
- 0498US6320509B1Radio frequency identification transponder having a high gain antenna configurationINTERMEC IP CORP·Filed 1999·Granted Nov 20, 2001·355 cites·32 claims
- 0598US6236223B1Method and apparatus for wireless radio frequency testing of RFID integrated circuitsINTERMEC IP CORP·Filed 1999·Granted May 22, 2001·395 cites·56 claims
- 0697US9761547B1Crystalline tileNORTHROP GRUMMAN SYSTEMS CORP·Filed 2016·Granted Sep 12, 2017·26 cites·10 claims
- 0797US6104291AMethod and apparatus for testing RFID tagsINTERMEC IP CORP·Filed 1998·Granted Aug 15, 2000·502 cites·58 claims
- 0897US6100804ARadio frequency identification systemINTECMEC IP CORP·Filed 1998·Granted Aug 8, 2000·1.1k cites·45 claims
- 0996US6535175B2Adjustable length antenna system for RF transpondersINTERMEC IP CORP·Filed 2001·Granted Mar 18, 2003·196 cites·19 claims
- 1096US6243013B1Cascaded DC voltages of multiple antenna RF tag front-end circuitsINTERMEC IP CORP·Filed 1999·Granted Jun 5, 2001·199 cites·20 claims
- 1196US6097347AWire antenna with stubs to optimize impedance for connecting to a circuitINTERMEC IP CORP·Filed 1997·Granted Aug 1, 2000·207 cites·17 claims
- 1295US6925499B1Video distribution system using disk load balancing by file copyingINFOVALUE COMPUTING INC·Filed 2001·Granted Aug 2, 2005·193 cites·34 claims
- 1395US6281794B1Radio frequency transponder with improved read distanceINTERMEC IP CORP·Filed 1999·Granted Aug 28, 2001·166 cites·17 claims
- 1495US6259408B1RFID transponders with paste antennas and flip-chip attachmentINTERMEC IP CORP·Filed 1999·Granted Jul 10, 2001·223 cites·24 claims
- 1595US6147606AApparatus and method for radio frequency transponder with improved read distanceINTERMEC IP CORP·Filed 1999·Granted Nov 14, 2000·181 cites·16 claims
- 1695US6140146AAutomated RFID transponder manufacturing on flexible tape substratesINTERMEC IP CORP·Filed 1999·Granted Oct 31, 2000·208 cites·25 claims
- 1795US6118379ARadio frequency identification transponder having a spiral antennaINTERMEC IP CORP·Filed 1998·Granted Sep 12, 2000·263 cites·23 claims
- 1895US6028564AWire antenna with optimized impedance for connecting to a circuitINTERMEC IP CORP·Filed 1997·Granted Feb 22, 2000·159 cites·26 claims
- 1994US9843301B1Silicon transformer balunNORTHROP GRUMMAN SYSTEMS CORP·Filed 2016·Granted Dec 12, 2017·22 cites·20 claims
- 2094US7324555B1Streaming while fetching broadband video objects using heterogeneous and dynamic optimized segmentation sizeINFOVALUE COMPUTING INC·Filed 2004·Granted Jan 29, 2008·155 cites·20 claims
- 2194US6121878ASystem for controlling assetsINTERMEC IP CORP·Filed 1998·Granted Sep 19, 2000·193 cites·20 claims
- 2293US11470695B2Filter with an enclosure having a micromachined interior using semiconductor fabricationNORTHROP GRUMMAN SYSTEMS CORP·Filed 2020·Granted Oct 11, 2022·7 cites·15 claims
- 2393US7039784B1Video distribution system using dynamic disk load balancing with variable sub-segmentingINFO VALUE COMPUTING INC·Filed 2001·Granted May 2, 2006·127 cites·142 claims
- 2492US7246369B1Broadband video distribution system using segmentsINFOVALUE COMPUTING INC·Filed 2000·Granted Jul 17, 2007·69 cites·100 claims
- 2592US6329915B1RF Tag having high dielectric constant materialINTERMEC IP CORP·Filed 1999·Granted Dec 11, 2001·137 cites·19 claims
- 2690US7143433B1Video distribution system using dynamic segmenting of video data filesINFOVALVE COMPUTING INC·Filed 2000·Granted Nov 28, 2006·131 cites·112 claims
- 2789US9431715B1Compact wide band, flared horn antenna with launchers for generating circular polarized sum and difference patternsNORTHROP GRUMMAN SYSTEMS CORP·Filed 2015·Granted Aug 30, 2016·10 cites·20 claims
- 2889US6215402B1Radio frequency identification transponder employing patch antennaINTERMEC IP CORP·Filed 1998·Granted Apr 10, 2001·154 cites·11 claims
- 2989US6166638ARF/ID transponder with squinted beam radiation pattern using dipole-over-ground plane antennaINTERMEC IP CORP·Filed 1999·Granted Dec 26, 2000·95 cites·27 claims
- 3088US6441740B1Radio frequency identification transponder having a reflectorINTERMEC IP CORP·Filed 1999·Granted Aug 27, 2002·93 cites·14 claims
- 3188US6177872B1Distributed impedance matching circuit for high reflection coefficient loadINTERMEC IP CORP·Filed 1998·Granted Jan 23, 2001·127 cites·15 claims
- 3287US5767789ACommunication channels through electrically conducting enclosures via frequency selective windowsIBM·Filed 1995·Granted Jun 16, 1998·112 cites·23 claims
- 3381US6400274B1High-performance mobile power antennasINTERMEC IP CORP·Filed 1999·Granted Jun 4, 2002·79 cites·34 claims
- 3480US12119313B2Channelized filter using semiconductor fabricationNORTHROP GRUMMAN SYSTEMS CORP·Filed 2023·Granted Oct 15, 2024·0 cites·14 claims
- 3579US7511621B1High-performance mobile power antennasINTERMEC IP CORP·Filed 2007·Granted Mar 31, 2009·13 cites·4 claims
- 3677US11837561B2Channelized filter using semiconductor fabricationNORTHROP GRUMMAN SYSTEMS CORP·Filed 2023·Granted Dec 5, 2023·0 cites·17 claims
- 3774US11658136B2Channelized filter using semiconductor fabricationNORTHROP GRUMMAN SYSTEMS CORP·Filed 2022·Granted May 23, 2023·0 cites·17 claims
- 3872US7002475B2Combination radio frequency identification transponder (RFID tag) and magnetic electronic article surveillance (EAS) tagINTERMEC IP CORP·Filed 2004·Granted Feb 21, 2006·17 cites·22 claims
- 3969US2025011160A1Method for fabricating a microelectronics h-frame deviceNORTHROP GRUMMAN SYSTEMS CORP·Filed 2024·Application pending·0 cites
- 4068US11373965B2Channelized filter using semiconductor fabricationNORTHROP GRUMMAN SYSTEMS CORP·Filed 2020·Granted Jun 28, 2022·0 cites·13 claims
- 4166US11706851B2RF circuit and enclosure having a micromachined interior using semiconductor fabricationNORTHROP GRUMMAN SYSTEMS CORP·Filed 2022·Granted Jul 18, 2023·0 cites·18 claims
- 4263US12126098B2RF modules with an enclosure having a micromachined interior using semiconductor fabricationNORTHROP GRUMMAN SYSTEMS CORP·Filed 2022·Granted Oct 22, 2024·0 cites·18 claims
- 4363US6239703B1Communication pad structure for semiconductor devicesINTERMEC IP CORP·Filed 1999·Granted May 29, 2001·29 cites·21 claims
- 4456US12122666B2Microelectronics H-frame deviceNORTHROP GRUMMAN SYSTEMS CORP·Filed 2021·Granted Oct 22, 2024·0 cites·11 claims
- 4552US7711159B1Multi-technology information capture system and methodINTERMEC IP CORP·Filed 2006·Granted May 4, 2010·0 cites·6 claims
- 4645US12022608B2Radio frequency crossover with high isolation in microelectronics H-frame deviceNORTHROP GRUMMAN SYSTEMS CORP·Filed 2021·Granted Jun 25, 2024·0 cites·15 claims
- 4745US8049625B1High-performance mobile power antennasINTERMAC TECHNOLOGIES CORP·Filed 2009·Granted Nov 1, 2011·0 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →