Inventor · Grevenbroich, DE

Thomas Helpenstein

21Patents
3h-index
18Co-inventors
56Inventor score

Filing activity: Feb 21, 2011 → Apr 29, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US9841142B2 Single-wire industrial safety system with safety device diagnostic communication Physics 11 Active
US9361073B2 Development environment for a safety relay configuration system Physics 6 Active
US10020151B2 Safety relay configuration system with multiple test pulse schemes using graphical interface Physics 5 Active
US9977407B2 Safety relay configuration system for safety mat device using graphical interface Physics 3 Active
US8736118B2 Single-channel safety output Electricity 2 Active
US10197985B2 Safety controller module Physics 2 Active
US10025287B2 Method for assignment of verification numbers Physics 1 Active
US9897990B2 Safety controller with rapid backup and configuration Physics 1 Active
US9754752B2 Auto detection of guard locking device Electricity 0 Active
US9053884B2 Safety switching device with universal signal input Electricity 0 Active
US10969759B2 Safety controller module Physics 0 Active
US10152030B2 Safety relay configuration system with safety monitoring and safety output function blocks Physics 0 Active
US10031502B2 I/O expansion for safety controller Physics 0 Active
US10520910B2 I/O expansion for safety controller Physics 0 Active
US11281191B2 Global e-stop in an industrial safety system with local and global safety input devices Physics 0 Active
US10274921B2 I/O expansion for safety controller Physics 0 Active
US11500429B2 Input signal coordination and method for use with an expansion module Physics 0 Active
US9916950B2 Single-channel safety output Electricity 0 Active
US10247356B2 Configurable safety input Electricity 0 Active
US9846423B2 Smart taps for a single-wire industrial safety system Physics 0 Active
US9368307B2 Single-channel safety output Electricity 0 Active

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