Inventor

JOHNSON MARY JO

US4 patents

Patents

4 patents

USD740415SOct 6, 2015

Stethoscope chestpiece

3M INNOVATIVE PROPERTIES CO13 citations82

USD820981SJun 19, 2018

Stethoscope chestpiece

3M INNOVATIVE PROPERTIES CO12 citations79

US10398406B2Sep 3, 2019

One piece stethoscope diaphragm

3M INNOVATIVE PROPERTIES CO11 citations78

US10213181B2Feb 26, 2019

Stethoscope diaphragm

3M INNOVATIVE PROPERTIES CO6 citations70