FJ

Fred M. Johnson

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Fullerton, CA: #226 of 1,038 inventorsTop 25%
🗺 California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,207,009 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9470619 Intrinsically-calibrated tribometer — 2016-10-18
9063051 Intrinsically-calibrated tribometer — 2015-06-23
8915117 Intrinsically-calibrated tribometer — 2014-12-23
8695398 Intrinsically-calibrated tribometer — 2014-04-15