Spencer Technologies is dedicated to developing and marketing ultrasound based devices that will improve patient outcomes by detecting and measuring cerebral blood flow signals. We are the world leader in the design and development of digital Power M-Mode Transcranial Doppler. This patented technology is designed to reduce healthcare costs, minimize test variability and improve patient outcomes. Merrill Spencer MD, Mark Moehring PhD and David Dobson, RVT are cofounders of Spencer Technologies, which started in 1992. The company’s first patent was issued in 1994. Since then, eight additional patents have been issued and six others are currently pending.