ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,517, issued on June 23, was assigned to Boston Scientific Neuromodulation Corp. (Valencia, Calif.).

"Stimulation waveforms with high- and low-frequency aspects in an implantable stimulator device" was invented by Goran N. Marnfeldt (Valencia, Calif.), Kiran K. Gururaj (Valencia, Calif.) and Rafael Carbunaru (Valley Village, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Waveforms for a stimulator device, and methods and circuitry for generating them, are disclosed having high- and low-frequency aspects. The waveforms comprise a sequence of pulses issued at a low frequency which each pulse comprising first and second charge-balanced phases. On...