Inventor · Solon, OH, US

Ronald E. Schultz

27Patents
16h-index
35Co-inventors
81Inventor score

Filing activity: Apr 16, 1979 → Jul 9, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US4747100A Token passing network utilizing active node table Electricity 144 Expired
US4302820A Dual language programmable controller Physics 90 Expired
US4413319A Programmable controller for executing block transfer with remote I/O interface racks Physics 90 Expired
US5225974A Programmable controller processor with an intelligent functional module interface Physics 79 Expired
US5887029A Method of scheduling spatially separated control events with an industrial controller Electricity 43 Expired
US4638452A Programmable controller with dynamically altered programmable real time interrupt interval Physics 41 Expired
US4443865A Processor module for a programmable controller Physics 39 Expired
US4477882A Communications network for programmable controllers Physics 35 Expired
US5781776A Industrial controller permitting program editing during program execution Physics 33 Expired
US4742443A Programmable controller with function chart interpreter Physics 32 Expired
US5619409A Program analysis circuitry for multi-tasking industrial controller Physics 26 Expired
US4251883A Fault detection apparatus for a programmable controller Physics 22 Expired
US5812133A Industrial controller with display of rung execution Emerging Cross-Sectional Technologies 22 Expired
US5983298A Industrial controller permitting removal and insertion of circuit cards while under power Emerging Cross-Sectional Technologies 20 Expired
US7487316B1 Archive and restore system and methodology for on-line edits utilizing non-volatile buffering Physics 18 Expired
US6865644B2 System and method for industrial controller with an I/O processor using cache memory to optimize exchange of shared data Physics 17 Expired
US8001419B2 Energy storage module Physics 16 Active
US7340574B2 Method and apparatus for synchronizing an industrial controller with a redundant controller Physics 11 Active
US7525798B2 Thermal cooling of industrial electronic module by conductive structure Electricity 8 Active
US5715439A Bi-directional co-processor interface Physics 7 Expired
US6888267B2 Battery backed memory with low battery voltage trip, disconnect and lockout Physics 5 Expired
US6018797A Integrated relay ladder language, reduced instruction set computer Physics 5 Expired
US7391610B2 Thermal cooling of industrial electronic module by conductive structure Electricity 5 Active
US9092023B2 Industrial controller using shared memory multicore architecture Physics 2 Active
US8108056B2 Industrial controller using shared memory multicore architecture Physics 2 Active

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