Inventor
LEWALLEN DONALD W
US2 patents
Patents
2 patentsUS6491630B1Dec 10, 2002
Ultrasound imaging device having a soft keyboard for entering data
KONINKL PHILIPS ELECTRONICS NV70 citations92
US6436040B1Aug 20, 2002
Intuitive user interface and control circuitry including linear distance measurement and user localization in a portable ultrasound diagnostic device
KONINKL PHILIPS ELECTRONICS NV59 citations91