SJ

Sheryl L. Johnson

TA Tandy: 2 patents #26 of 92Top 30%
Overall (All Time): #2,307,230 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5144613 Thermal bulk erasure method for dye polymer optical media Bryan Clark 1992-09-01
5090008 Erasable recording media Bryan Clark, Robert Guerra 1992-02-18