Inventor · disambiguated record
William C. Drach
Also filed as: DRACH WILLIAM · DRACH WILLIAM C
23 granted patents·1,300 citations·filing 1991–2004
97Inventor score
Top patents by PatentIndex Score
23 records- 0199US5212463APlanar ferro-electric phase shifterUS ARMY·Filed 1992·Granted May 18, 1993·222 cites·10 claims
- 0298US5561407ASingle substrate planar digital ferroelectric phase shifterUS ARMY·Filed 1995·Granted Oct 1, 1996·181 cites·13 claims
- 0398US5307033APlanar digital ferroelectric phase shifterUS ARMY·Filed 1993·Granted Apr 26, 1994·210 cites·12 claims
- 0497US5479139ASystem and method for calibrating a ferroelectric phase shifterUS ARMY·Filed 1995·Granted Dec 26, 1995·148 cites·16 claims
- 0593US5334958AMicrowave ferroelectric phase shifters and methods for fabricating the sameUS ARMY·Filed 1993·Granted Aug 2, 1994·141 cites·11 claims
- 0688US6239744B1Remote tilt antenna systemRADIO FREQUENCY SYSTEMS INC·Filed 1999·Granted May 29, 2001·82 cites·48 claims
- 0782US5798675AContinuously variable phase-shifter for electrically down-tilting an antennaRADIO FREQUENCY SYSTEMS INC·Filed 1997·Granted Aug 25, 1998·69 cites·5 claims
- 0881US5680141ATemperature calibration system for a ferroelectric phase shifting array antennaUS ARMY·Filed 1995·Granted Oct 21, 1997·70 cites·10 claims
- 0976US5617103AFerroelectric phase shifting antenna arrayUS ARMY·Filed 1995·Granted Apr 1, 1997·61 cites·8 claims
- 1071US6677896B2Remote tilt antenna systemRADIO FREQUENCY SYSTEMS INC·Filed 2001·Granted Jan 13, 2004·19 cites·32 claims
- 1170US6172642B1Radar system having a ferroelectric phased array antenna operating with accurate, automatic environment-calibrated, electronic beam steeringUS ARMY·Filed 1998·Granted Jan 9, 2001·42 cites·8 claims
- 1266US7192661B1Rare earth metal compounds for use in high critical temperature thin film super-conducting antennasUS ARMY·Filed 2004·Granted Mar 20, 2007·4 cites·2 claims
- 1364US6827915B1Rare earth metal compounds for use in high critical temperature thin film super-conductors, ferroelectrics, pyroelectrics, piezoelectrics, and hybridsUS ARMY·Filed 2001·Granted Dec 7, 2004·6 cites·13 claims
- 1454US7336981B1Rare earth metal compounds for use in high critical temperature Josephson junctionsUS ARMY·Filed 2004·Granted Feb 26, 2008·1 cites·6 claims
- 1551US5486992AHigh voltage direct current power supply with feedback control and circuit protectionUS ARMY·Filed 1995·Granted Jan 23, 1996·18 cites·8 claims
- 1650US5052183AOpen cryogenic microwave test chamberUS ARMY·Filed 1991·Granted Oct 1, 1991·13 cites·13 claims
- 1740USH1306HMethod 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 surfacesUS ARMY·Filed 1993·Granted May 3, 1994·7 cites·24 claims
- 1837US6859111B1Voltage tuned ferroelectric resonant oscillatorUS ARMY·Filed 2003·Granted Feb 22, 2005·0 cites·10 claims
- 1934US7312182B1Rare earth metal compounds for use in high critical temperature thin film super-conductorsUS ARMY·Filed 2004·Granted Dec 25, 2007·0 cites·4 claims
- 2032US5451866AQuick-mount measuring device for evaluating the electrical characteristics of ferroelectric materialsUS ARMY·Filed 1994·Granted Sep 19, 1995·3 cites·2 claims
- 2132US5216395AQuarter wave high voltage DC block covered with a polyurethane insulating layerUS ARMY·Filed 1992·Granted Jun 1, 1993·2 cites·1 claims
- 2231US7306855B1Rare earth metal compounds for use in high critical temperature thin film structures for super-conductors, ferroelectrics, pyroelectrics, piezoelectrics, and hybridsTAUBER ARTHUR·Filed 2004·Granted Dec 11, 2007·0 cites·28 claims
- 2330US5487014ALow cost automated system for evaluating the electrical characteristics of ferroelectric materialsUS ARMY·Filed 1994·Granted Jan 23, 1996·1 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when William C. Drach files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →