Inventor
DUAN DAH-WEIH
US49 patents
⚠️ This page may combine multiple inventors who share the name “DUAN DAH-WEIH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INTERMEC IP CORP
27 patentsUS6320509B1Nov 20, 2001
Radio frequency identification transponder having a high gain antenna configuration
INTERMEC IP CORP355 citations99
US6285342B1Sep 4, 2001
Radio frequency tag with miniaturized resonant antenna
INTERMEC IP CORP367 citations99
US6281794B1Aug 28, 2001
Radio frequency transponder with improved read distance
INTERMEC IP CORP166 citations99
US6259408B1Jul 10, 2001
RFID transponders with paste antennas and flip-chip attachment
INTERMEC IP CORP223 citations99
US6249227B1Jun 19, 2001
RFID integrated in electronic assets
INTERMEC IP CORP443 citations99
US6243013B1Jun 5, 2001
Cascaded DC voltages of multiple antenna RF tag front-end circuits
INTERMEC IP CORP199 citations99
US6236223B1May 22, 2001
Method and apparatus for wireless radio frequency testing of RFID integrated circuits
INTERMEC IP CORP395 citations99
US6201474B1Mar 13, 2001
Magnetic tape storage media having RFID transponders
INTERMEC IP CORP278 citations99
US6147606ANov 14, 2000
Apparatus and method for radio frequency transponder with improved read distance
INTERMEC IP CORP181 citations99
US6140146AOct 31, 2000
Automated RFID transponder manufacturing on flexible tape substrates
INTERMEC IP CORP208 citations99
US6121878ASep 19, 2000
System for controlling assets
INTERMEC IP CORP193 citations99
US6118379ASep 12, 2000
Radio frequency identification transponder having a spiral antenna
INTERMEC IP CORP263 citations99
US6097347AAug 1, 2000
Wire antenna with stubs to optimize impedance for connecting to a circuit
INTERMEC IP CORP207 citations99
US6028564AFeb 22, 2000
Wire antenna with optimized impedance for connecting to a circuit
INTERMEC IP CORP159 citations99
US6441740B1Aug 27, 2002
Radio frequency identification transponder having a reflector
INTERMEC IP CORP93 citations98
US6166638ADec 26, 2000
RF/ID transponder with squinted beam radiation pattern using dipole-over-ground plane antenna
INTERMEC IP CORP95 citations98
US6104291AAug 15, 2000
Method and apparatus for testing RFID tags
INTERMEC IP CORP502 citations98
US5939984AAug 17, 1999
Combination radio frequency transponder (RF Tag) and magnetic electronic article surveillance (EAS) material
INTERMEC IP CORP211 citations98
US6535175B2Mar 18, 2003
Adjustable length antenna system for RF transponders
INTERMEC IP CORP196 citations96
US6329915B1Dec 11, 2001
RF Tag having high dielectric constant material
INTERMEC IP CORP137 citations96
US6215402B1Apr 10, 2001
Radio frequency identification transponder employing patch antenna
INTERMEC IP CORP154 citations96
US6400274B1Jun 4, 2002
High-performance mobile power antennas
INTERMEC IP CORP79 citations95
US6177872B1Jan 23, 2001
Distributed impedance matching circuit for high reflection coefficient load
INTERMEC IP CORP127 citations95
US6239703B1May 29, 2001
Communication pad structure for semiconductor devices
INTERMEC IP CORP29 citations93
US7002475B2Feb 21, 2006
Combination radio frequency identification transponder (RFID tag) and magnetic electronic article surveillance (EAS) tag
INTERMEC IP CORP17 citations92
US7511621B1Mar 31, 2009
High-performance mobile power antennas
INTERMEC IP CORP13 citations82
US7711159B1May 4, 2010
Multi-technology information capture system and method
INTERMEC IP CORP0 citations49
NORTHROP GRUMMAN SYSTEMS CORP
14 patentsUS9761547B1Sep 12, 2017
Crystalline tile
NORTHROP GRUMMAN SYSTEMS CORP26 citations93
US9843301B1Dec 12, 2017
Silicon transformer balun
NORTHROP GRUMMAN SYSTEMS CORP22 citations92
US11470695B2Oct 11, 2022
Filter with an enclosure having a micromachined interior using semiconductor fabrication
NORTHROP GRUMMAN SYSTEMS CORP7 citations81
US9431715B1Aug 30, 2016
Compact wide band, flared horn antenna with launchers for generating circular polarized sum and difference patterns
NORTHROP GRUMMAN SYSTEMS CORP10 citations79
US12119313B2Oct 15, 2024
Channelized filter using semiconductor fabrication
NORTHROP GRUMMAN SYSTEMS CORP0 citations61
US11837561B2Dec 5, 2023
Channelized filter using semiconductor fabrication
NORTHROP GRUMMAN SYSTEMS CORP0 citations61
US11658136B2May 23, 2023
Channelized filter using semiconductor fabrication
NORTHROP GRUMMAN SYSTEMS CORP0 citations61
US11373965B2Jun 28, 2022
Channelized filter using semiconductor fabrication
NORTHROP GRUMMAN SYSTEMS CORP0 citations61
US11706851B2Jul 18, 2023
RF circuit and enclosure having a micromachined interior using semiconductor fabrication
NORTHROP GRUMMAN SYSTEMS CORP0 citations58
US12537276B1Jan 27, 2026
Nonlinear transmission line (NLTL) with controllable harmonic output power spectrum
NORTHROP GRUMMAN SYSTEMS CORP0 citations54
US12587159B1Mar 24, 2026
Nonlinear transmission line (NLTL) with controllable harmonic output power spectrum
NORTHROP GRUMMAN SYSTEMS CORP0 citations53
US12126098B2Oct 22, 2024
RF modules with an enclosure having a micromachined interior using semiconductor fabrication
NORTHROP GRUMMAN SYSTEMS CORP0 citations52
US12122666B2Oct 22, 2024
Microelectronics H-frame device
NORTHROP GRUMMAN SYSTEMS CORP0 citations44
US12022608B2Jun 25, 2024
Radio frequency crossover with high isolation in microelectronics H-frame device
NORTHROP GRUMMAN SYSTEMS CORP0 citations44
INFOVALUE COMPUTING INC
3 patentsUS7324555B1Jan 29, 2008
Streaming while fetching broadband video objects using heterogeneous and dynamic optimized segmentation size
INFOVALUE COMPUTING INC155 citations97
US6925499B1Aug 2, 2005
Video distribution system using disk load balancing by file copying
INFOVALUE COMPUTING INC193 citations97
US7246369B1Jul 17, 2007
Broadband video distribution system using segments
INFOVALUE COMPUTING INC69 citations96