Patent assignee · US · COMPANY

Silicon Storage Technology, Inc.

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618Patents
410Active
618Granted
58Portfolio score

Filing activity: Jan 22, 1990 → Apr 24, 2024 · 100 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US5029130A Single transistor non-valatile electrically alterable semiconductor memory device Electricity 439 Expired
US6756633B2 Semiconductor memory array of floating gate memory cells with horizontally oriented floating gate edges Electricity 296 Expired
US6815704B1 Phase change memory device employing thermally insulating voids Electricity 286 Expired
US6882572B2 Method of operating a semiconductor memory array of floating gate memory cells with horizontally oriented edges Electricity 266 Expired
US6937507B2 Memory device and method of operating same Physics 247 Expired
US6927410B2 Memory device with discrete layers of phase change memory material Electricity 240 Expired
US6867638B2 High voltage generation and regulation system for digital multilevel nonvolatile memory Physics 211 Expired
US6339815B1 Microcontroller system having allocation circuitry to selectively allocate and/or hide portions of a program memory address space Physics 177 Expired
US7868375B2 Split gate non-volatile flash memory cell having a floating gate, control gate, select gate and an erase gate with an overhang over the floating gate, array and method of manufacturing Electricity 138 Active
US6282145A Array architecture and operating methods for digital multilevel nonvolatile memory integrated circuit system Physics 137 Expired
US5045488A Method of manufacturing a single transistor non-volatile, electrically alterable semiconductor memory device Electricity 133 Expired
US6396742B1 Testing of multilevel semiconductor memory Physics 112 Expired
US7031214B2 Digital multilevel memory system having multistage autozero sensing Physics 109 Expired
US6505279B1 Microcontroller system having security circuitry to selectively lock portions of a program memory address space Physics 109 Expired
US6405323B1 Defect management for interface to electrically-erasable programmable read-only memory Physics 106 Expired
US5242848A Self-aligned method of making a split gate single transistor non-volatile electrically alterable semiconductor memory device Emerging Cross-Sectional Technologies 102 Expired
US5067108A Single transistor non-volatile electrically alterable semiconductor memory device with a re-crystallized floating gate Electricity 99 Expired
US5572054A Method of operating a single transistor non-volatile electrically alterable semiconductor memory device Electricity 88 Expired
US7238959B2 Phase change memory device employing thermally insulating voids and sloped trench, and a method of making same Emerging Cross-Sectional Technologies 85 Expired
US7471581B2 Wide dynamic range and high speed voltage mode sensing for a multilevel digital non-volatile memory Physics 78 Active
US7315056B2 Semiconductor memory array of floating gate memory cells with program/erase and select gates Physics 77 Expired
US7533063B2 Smart memory card wallet Physics 75 Expired
US6519180B2 Array architecture and operating methods for digital multilevel nonvolatile memory integrated circuit system Physics 74 Expired
US7050316B1 Differential non-volatile content addressable memory cell and array using phase changing resistor storage elements Physics 66 Expired
US5278087A Method of making a single transistor non-volatile electrically alterable semiconductor memory device with a re-crystallized floating gate Emerging Cross-Sectional Technologies 61 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.