Inventor

MARSHALL JOHN DOUGLAS

US6 patents

⚠️ This page may combine multiple inventors who share the name “MARSHALL JOHN DOUGLAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CORDANCE MEDICAL INC

3 patents

US12403333B2Sep 2, 2025

Methods and systems for confirming focus of ultrasound beams

CORDANCE MEDICAL INC0 citations57

US12017093B2Jun 25, 2024

Methods and systems for confirming focus of ultrasound beams

CORDANCE MEDICAL INC1 citations57

US12564737B2Mar 3, 2026

Rapid calculation of parameters for delivering ultrasound energy to selected locations in the brain

CORDANCE MEDICAL INC0 citations46

SIEMENS MEDICAL SOLUTIONS

2 patents

US7481577B2Jan 27, 2009

Ultrasound transducer fault measurement method and system

SIEMENS MEDICAL SOLUTIONS54 citations95

US7156551B2Jan 2, 2007

Ultrasound transducer fault measurement method and system

SIEMENS MEDICAL SOLUTIONS20 citations90

MARSHALL JOHN DOUGLAS

1 patent

US8946972B2Feb 3, 2015

Layer switching for an ultrasound transducer array

MARSHALL JOHN DOUGLAS1 citations44