SP

Stephen K. Petersen

SH Sheldahl: 2 patents #12 of 33Top 40%
Overall (All Time): #2,361,500 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4397082 Membrane switch having adhesive label as edge seal — 1983-08-09
4375018 Membrane switch having adhesive label as edge seal — 1983-02-22