David A. Johnson — 2 Patents in 2021

JIJohnstech International: 2 patents #3 of 13Top 25%

Wayzata, MN: #4 of 29 inventorsTop 15%

Minnesota: #1,164 of 7,038 inventorsTop 20%

Overall (2021): #169,163 of 548,734Top 35%

2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
11209458	Integrated circuit contactor for testing ICs and method of construction	John E. Nelson, Ranauld Perez, Jeffrey C. Sherry, Michael Andres	2021-12-28
11029335	Selectively geometric shaped contact pin for electronic component testing and method of fabrication	Michael Andres, Neil Anthony Graf, Kenna Pretts	2021-06-08