MJ

Mary Jo Johnson

3M: 2 patents #280 of 1,428Top 20%
📍 Lake Elmo, MN: #12 of 54 inventorsTop 25%
🗺 Minnesota: #1,470 of 7,373 inventorsTop 20%
Overall (2019): #143,943 of 560,194Top 30%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10398406 One piece stethoscope diaphragm Joseph P. Keller, Dean E. Sitz 2019-09-03
10213181 Stethoscope diaphragm Joseph P. Keller, Dean E. Sitz 2019-02-26