DL

Donald W. Lewallen

Philips: 2 patents #2,426 of 7,731Top 35%
📍 Andover, MA: #650 of 1,295 inventorsTop 55%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,217,216 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6491630 Ultrasound imaging device having a soft keyboard for entering data Grace M Saccardo, Rachel M. Kinicki, Daniel Maier 2002-12-10
6436040 Intuitive user interface and control circuitry including linear distance measurement and user localization in a portable ultrasound diagnostic device Brian Collamore, Rachel M. Kinicki, Grace M Saccardo, Janice M Blackwell-Jones, Peter K. Rhoads 2002-08-20