Inventor · Houston, TX, US

Jonathan Liu

31Patents
12h-index
25Co-inventors
81Inventor score

Filing activity: May 23, 1995 → Dec 15, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US7531836B2 Body bias compensation for aged transistors Electricity 111 Active
US5964880A Circuit interface synchronization using slave variable delay loop Electricity 45 Expired
US7205854B2 On-chip transistor degradation monitoring Physics 44 Expired
US6298450A Detecting states of signals Physics 38 Expired
US8357376B2 Method of purifying influenza virus and removing MDCK cell DNA contaminants Chemistry; Metallurgy 32 Active
US10310113B2 Q-compensated full wavefield inversion Physics 25 Active
US6832325B2 Device on a source synchronous bus sending data in quadrature phase relationship and receiving data in phase with the bus clock signal Electricity 23 Expired
US6175928A Reducing timing variance of signals from an electronic device Physics 22 Expired
US6580305B1 Generating a clock signal Physics 19 Expired
US6172546A Method and apparatus to monitor a characteristic associated with an electronic device Physics 15 Expired
US6842027B2 Method and apparatus for detection and quantification of on-die voltage noise in microcircuits Physics 14 Expired
US5623634A Resource allocation with parameter counter in multiple requester system Physics 12 Expired
US7471161B2 Signal degradation monitoring Electricity 11 Active
US6525607B1 High-voltage differential input receiver Electricity 10 Expired
US6353893B1 Sleep mode indicator for a battery-operated device Physics 10 Expired
US6725390B1 Method and an apparatus for adjusting clock signal to sample data Physics 10 Expired
US6108758A Multiple masters in a memory control system Physics 9 Expired
US7338817B2 Body bias compensation for aged transistors Electricity 9 Expired
US7675818B2 Method for tomographic inversion by matrix transformation Physics 5 Active
US7138816B2 On-die monitoring device power grid Physics 4 Expired
US6631338B2 Dynamic current calibrated driver circuit Electricity 4 Expired
US8202726B2 Methods for cultivating cells, propagating and purifying viruses Chemistry; Metallurgy 4 Active
US6539485B1 Intelligent sleep mode indicator Physics 3 Expired
US9977141B2 Velocity tomography using property scans Physics 3 Active
US7334148B2 Optimization of integrated circuit device I/O bus timing Physics 3 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.