JJ

John Andrew Johnston

AS Atmospheric Sensors: 2 patents #2 of 3Top 70%
Overall (All Time): #1,491,268 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9618491 Gas discriminating semiconductor sensors Mike Kellaway 2017-04-11
8972204 Gas discriminating semiconductor sensors Mike Kellaway 2015-03-03
5055188 Magnetic apparatus for controlling Protista in distillates Lindsay W. Forrest, Colin P. Wickham 1991-10-08