Inventor · Valencia, CA, US

Joey Chen

61Patents
26h-index
39Co-inventors
88Inventor score

Filing activity: Sep 17, 1999 → Apr 7, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US6516227B1 Rechargeable spinal cord stimulator system Human Necessities 1,872 Expired
US6895280B2 Rechargeable spinal cord stimulator system Human Necessities 981 Expired
US6553263B1 Implantable pulse generators using rechargeable zero-volt technology lithium-ion batteries Human Necessities 682 Expired
US7496404B2 Rechargeable spinal cord stimulator system Human Necessities 210 Active
US8473066B2 External charger for a medical implantable device using field sensing coils to improve coupling Electricity 156 Active
US6728824B1 Method and apparatus for controlling multi-channel bitstreams Physics 147 Expired
US7248929B2 Implantable devices using rechargeable zero-volt technology lithium-ion batteries Human Necessities 129 Expired
US7184836B1 Implantable devices using rechargeable zero-volt technology lithium-ion batteries Human Necessities 123 Expired
US8498716B2 External controller for an implantable medical device system with coupleable external charging coil assembly Human Necessities 114 Active
US7177691B2 Implantable pulse generators using rechargeable zero-volt technology lithium-ion batteries Human Necessities 107 Expired
US9731116B2 Charge pump system, devices and methods for an implantable stimulator Human Necessities 96 Active
US7818068B2 Implantable pulse generators using rechargeable zero-volt technology lithium-ion batteries Human Necessities 95 Active
US7801615B2 Rechargeable spinal cord stimulator system Human Necessities 90 Active
US7295878B1 Implantable devices using rechargeable zero-volt technology lithium-ion batteries Human Necessities 90 Expired
US9248279B2 Neurostimulator configured to sense evoked potentials in peripheral nerves Human Necessities 76 Active
US7769462B2 Rechargeable spinal cord stimulation system Human Necessities 76 Active
US9744347B2 Systems and methods for reducing power consumption in an implantable medical device Human Necessities 54 Active
US9209634B2 Method of improving battery recharge efficiency by statistical analysis Electricity 51 Active
US9526897B2 Neurostimulator configured to sense evoked potentials in peripheral nerves Human Necessities 42 Active
US9750930B2 Circuit for discriminating between battery charging signals and RF telemetry signals received by a single coil in an implantable medical device Human Necessities 39 Active
US8666491B2 Medical telemetry system with printed circuit board communication coil Electricity 35 Active
US8694117B2 External charger for a medical implantable device using field sensing coils to improve coupling Electricity 34 Active
US9030159B2 Inductive charger with magnetic shielding Electricity 30 Active
US9142989B2 Method of minimizing interruptions to implantable medical device recharging Electricity 26 Active
US9002445B2 Charger with orthogonal PCB for implantable medical device Electricity 26 Active

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