Inventor
DRACH WILLIAM C
US21 patents
⚠️ This page may combine multiple inventors who share the name “DRACH WILLIAM C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
US ARMY
19 patentsUS5561407AOct 1, 1996
Single substrate planar digital ferroelectric phase shifter
US ARMY181 citations99
US5307033AApr 26, 1994
Planar digital ferroelectric phase shifter
US ARMY210 citations99
US5212463AMay 18, 1993
Planar ferro-electric phase shifter
US ARMY222 citations99
US5479139ADec 26, 1995
System and method for calibrating a ferroelectric phase shifter
US ARMY148 citations98
US5334958AAug 2, 1994
Microwave ferroelectric phase shifters and methods for fabricating the same
US ARMY141 citations98
US5680141AOct 21, 1997
Temperature calibration system for a ferroelectric phase shifting array antenna
US ARMY70 citations94
US5617103AApr 1, 1997
Ferroelectric phase shifting antenna array
US ARMY61 citations93
US6172642B1Jan 9, 2001
Radar system having a ferroelectric phased array antenna operating with accurate, automatic environment-calibrated, electronic beam steering
US ARMY42 citations90
US5486992AJan 23, 1996
High voltage direct current power supply with feedback control and circuit protection
US ARMY18 citations74
USH1306HMay 3, 1994
Method of using an improved solder to bridge a nonmetallic gap between metallic surfaces, said improved solder, and an improved solder connection to bridge a nonmetallic gap between metallic surfaces
US ARMY7 citations74
US5052183AOct 1, 1991
Open cryogenic microwave test chamber
US ARMY13 citations74
US7192661B1Mar 20, 2007
Rare earth metal compounds for use in high critical temperature thin film super-conducting antennas
US ARMY4 citations73
US5451866ASep 19, 1995
Quick-mount measuring device for evaluating the electrical characteristics of ferroelectric materials
US ARMY3 citations63
US5216395AJun 1, 1993
Quarter wave high voltage DC block covered with a polyurethane insulating layer
US ARMY2 citations63
US7336981B1Feb 26, 2008
Rare earth metal compounds for use in high critical temperature Josephson junctions
US ARMY1 citations62
US6827915B1Dec 7, 2004
Rare earth metal compounds for use in high critical temperature thin film super-conductors, ferroelectrics, pyroelectrics, piezoelectrics, and hybrids
US ARMY6 citations62
US6859111B1Feb 22, 2005
Voltage tuned ferroelectric resonant oscillator
US ARMY0 citations52
US5487014AJan 23, 1996
Low cost automated system for evaluating the electrical characteristics of ferroelectric materials
US ARMY1 citations52
US7312182B1Dec 25, 2007
Rare earth metal compounds for use in high critical temperature thin film super-conductors
US ARMY0 citations51