JF

John M. Fruhwald

BA Bacharach: 3 patents #4 of 36Top 15%
Overall (All Time): #1,673,705 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4758837 4-20 milliampere transmitter 1988-07-19
4664886 Trimode gas detection instrument Robert L. Novack 1987-05-12
4642172 Controlled-potential bias circuit for electrochemical cells 1987-02-10