Wayzata, Minnesota
United States
6
2019-10-08
The entities that hold a legal rights for patent applications filed by inventor Johnson David A.:
David A. Johnson from Wayzata, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Constant pressure pin tip for testing integrated circuit chips
#2 | 2018-05-01Constant stress pin tip for testing integrated circuit chips
#3 | 2010-06-03APPARATUS FOR PROVIDING CONTROLLED IMPEDANCE IN AN ELECTRICAL CONTACT
#4 | 2008-10-30APPARATUS FOR PROVIDING CONTROLLED IMPEDANCE IN AN ELECTRICAL CONTACT
#5 | 2005-09-15Apparatus for providing controlled impedance in an electrical contact
#6 | 2005-03-01Grounding inserts
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